Addition and Subtraction

- Overview of Addition (Sums to 1,000)
- Addition: 3 Digits
- Addition: Select the Correct Sentence
- Addition: Select the Incorrect Sentence
- Addition: Complete the Addition Sentence
- Overview of Subtraction (Numbers to 1,000)
- Subtraction: 3-digits Minus 2-digits
- Subtraction: 3-digits Minus 3-digits
- Subtraction: Select the Correct Sentence
- Subtraction: Select the Incorrect Sentence
- Subtraction: Complete the Subtraction Sentence

Multiplication and Division

- Patterns in Division by 6, 7, 8, 9, 11, 12
- Division Terms
- Express the Sentence and Calculate - Division
- Finding the Expression not Equal to a Given Solution
- Finding the Number From the Figure Patterns
- Letter Replacement (Division)
- Using Multiplication Replacement to Find a New Amount
- Multiple Rounds of Multiplication - Multiplying 3 Digits by 1 Digit
- Multi-unit Calculations
- Dividing to Find the Time
- Dividing to Find the Unit Working Product
- Dividing Multi-digit Numbers by 1 Digit Numbers
- Estimating the Number Needed Using Remainders
- Finding the Total Number: Using Subtraction and Division
- Finding the Total Number: Given Remainder and Number Needed

- Multiplying 2-digit by 2-digit Numbers in Columns
- The Relationship Between Factors and Products
- Calculating from an Expression
- Comparing Using Greater Than, Less Than, and Equal To
- Multiplication Patterns Over Increasing Place Values
- Patterns Without Using Multiplication
- Shortening Multiplication Expressions
- Finding Number Patterns Involving Multiplication

- Dividing 3 and 4 Digit Numbers by 2 Digit Numbers
- Selecting the Correct Statement Given a Division Problem
- Selecting the Quotient Using Given Statements
- Identifying Correct Division with a Yes or No Answer
- The Relationship Between Dividend, Divisor and Quotient
- Comparing the Divisions
- Recognizing Patterns in Division Using Multiples of Ten
- Finding the Number of Digits in the Quotient
- Finding the Missing Number
- Finding the Range of Missing Numbers Given a Statement
- Finding the Minimum Number
- Finding the Minimum Number Given a Statement
- Finding the Maximum Number Given a Statement
- Dividing 2 Digits by 2 Digits with a Remainder
- Dividing 3 or 4 Digits by 2 Digits with a Remainder
- Finding the Remainder - Long Division Word Problems
- Filling in the Quotient - Long Division
- Filling in the Largest or Smallest Divisor

- Finding the Required Number of Groups - Word Problems
- Making an Even Group - Word Problems
- Finding the Total Amount - Word Problems
- Multiple Units and Multiplication - Word Problems
- Using Both Division and Multiplication - Word Problems
- Dividing then Multiply to Find the New Amount - Word Problems
- Finding the Adjusted Rate - Word Problems

Multiple Operations and Grouping

- Adding and Subtracting
- Multiplying and Dividing
- Adding, Subtracting, and Multiplying
- Adding, Subtracting, Multiplying and Dividing
- Adding, Subtracting, and Multiplying with Parentheses
- Adding and Subtracting - Missing Number
- Adding and Subtracting - Missing Operation
- Multiplying and Dividing - Missing Number
- Multiplying and Dividing - Missing Operation
- Adding, Subtracting, and Multiplying - Missing Number
- Adding and Subtracting with Parentheses
- Four Operations - Missing Operation
- Adding, Subtracting, and Multiplying with Parentheses - Missing Operation
- Four Operations with Parentheses - Missing Operation
- Selecting the First Operation
- Placing the Missing Parentheses to Make the Equation True
- Selecting the Same Answer After Dismissed Parentheses
- Only Using Addition or Subtraction Symbols
- Changing One of the Operator Symbols
- Inserting the Signs of the Four Operations
- Selecting the Numbers From a Given Set
- Using the Basic Operator Symbols
- Using the Basic Operator Symbols and Parentheses

Place Values

- Finding and Completing the Number Patterns
- Finding and Completing Growth Pattern Sequences
- Creating Largest and Smallest Numbers Given Digits
- Creating Largest and Smallest Numbers Given Variables and Digits
- Identifying Numbers Based on Statements Involving Place Value
- Smallest and Largest 3-digit Numbers From Given Digits
- Place Value Problems Involving Money
- Place Value Problems Involving Items
- Place Value Problems Involving Grouping of Items
- Multiplication Problems Involving Grouping of Items and Total Items
- Representing Numbers in Expanded Form I
- Identifying the Value of Digits Based On Place Value
- Identifying Place Value Given a Digit
- Recognizing Place Value of Digits in Numbers
- Calculating Sums (Numbers up to 100,000)
- Calculating Quotients (Numbers up to 100,000)
- Dual Place Value
- Mixed Review (Numbers up to 100,000)
- Comparing Values of Two Numbers II
- Using Greater Than and Less Than
- Comparing the Values of Numbers in a Set
- Comparing Numbers Originally in Word Form
- Comparing Sums or Differences (Numbers up to 100,000)
- Arranging Numbers in Specific Orders
- Completion of Number Patterns
- Before and After Problems
- Forming Largest and Smallest Numbers (Includes Even and Odd)
- Forming Numbers: Mixed
- Arbitrary Digits (Numbers up to 100,000)
- Number Riddles (Numbers up to 100,000)
- Turning Words into Numbers Using Place Value Models
- Turning Numbers into Words Using Place Value Models
- Selecting the Correct Statement Relating Words and Numbers
- Selecting True or False for Statements Relating Words and Numbers

- One-step Conversions Between Multiples of 10
- Identifying Place Value of Digits in Quotients
- Recognizing Place Value of Digits in Numbers II
- Numbers in Expanded Form
- Expanded Form Involving Words
- Comparing the Values of Two Numbers
- Comparing the Values of Numbers in a Set (Numbers up to 10 Million)
- Arranging Numbers in Increasing Order
- Arranging Numbers in Decreasing Order
- Completing Number Patterns
- Forming the Largest or Smallest Possible Number
- Forming the Largest or Smallest Possible Number (Even and Odd)

- Turning Numbers into Words within Word Problems
- One-step Conversions Between Hundreds, Tens, and Ones
- Representing Numbers in Expanded Form II
- Completing the Expanded Forms of Numbers (Place Values to 1,000)
- Identifying Values of Digits in Numbers
- Comparing Digit Values in Numbers (Place Values to 1,000)

Decimals

- Overview - Tenths
- Identifying Decimals on a Number Line to Tenths
- Completing a Decimal Place Value Chart to Tenths
- Overview - Hundredths
- Identifying Decimals on a Number Line to Hundredths
- Completing a Decimal Place Value Chart up to Hundredths
- Overview - Thousandths
- Identifying Decimals On a Number Line to Thousandths
- Completing a Decimal Place Value Chart to Thousandths
- Overview - Equivalent Decimals Ending in Zero
- Identifying Equivalent Decimals Ending in Zero
- When Decimal Values are Changed by Removing a Zero

- Overview of Comparing Decimals
- Determining the Greatest and Least Value in a Set of Decimals
- Comparing Decimals with Whole Numbers Using Inequalities
- Arranging a Set of Decimals in Order of Decreasing Value
- Determining Which Decimal Falls Between Two Given Decimals
- Determining the Order of Decimals in Word Problems

- Overview of Decimal Addition
- Adding Decimals from the Thousandths Place to the Tens Place
- Adding Decimals by Inserting Place-holding Zeros
- Adding Decimals - Word Problems
- Overview of Decimal Subtraction
- Subtracting Decimals from the Thousandths Place to the Tens Place
- Subtracting Decimals by Inserting Place-holding Zeroes

Money

Time

- Overview of Telling Time to Quarter and Hour
- Looking at the Clock and Telling the Time
- Writing Times in Numbers
- Overview of Time Conversion Between Words and Numbers
- Expressing the Time in Digits Using a Colon
- Time Expressed in Multiple Ways - Word Problems
- Overview of Analog and Digital Clocks
- Matching the Time to the Clock
- Matching the Analog and Digital Clocks
- Telling the Time - Before and After

- Overview of Telling Time to 1-minute Intervals
- Overview of Elapsed Time
- Determining Beginning, Ending, and Elapsed Time Using Two Clocks
- Determining Beginning, Ending, and Elapsed Time Using a Timeline
- Beginning, Ending, and Elapsed Time with Clocks - Word Problems
- Solving Word Problems for Elapsed Time Without Clocks
- Overview of Schedules and Timelines
- Using Timelines to 1-minute Increments
- Reading Schedules
- Transportation Schedules 1
- Transportation Schedules 2
- Overview of Duration of Time with a 12-hour Clock
- Ending Time in 5-minute Intervals - Word Problems
- Beginning Time in 5-minute Intervals - Word Problems
- Elapsed Time in a Sequence of Events - Word Problems
- Finding the Difference Between Two Time Intervals
- Solving for Elapsed Time Related to Rate
- Solving Multi-step Problems Involving Time

- Overview of 24-hour Clocks
- Converting Time from a 24-hour Clock to a 12-hour Clock
- Converting Time from a 12-hour Clock to a 24-hour Clock
- Writing Time Using 12-hour and 24-hour Clocks
- Overview of 24 Hour Time Format
- Finding the Time with a Timeline
- Elapsed Time - Finding the Ending Time (Single Step)
- Determining Duration Time - One Step
- Overview of Choosing Appropriate Time Units
- Elapsed Time - Finding the Start Time (Multiple Steps)
- Determining Task Length

- Overview of Speed Based Problems
- Total Length - Challenge Problems
- Time and Rate Problems
- Distance Between Items
- Lengths of Three Objects
- Determining Missing Length
- Determining Rate
- Determining the Sum of Parts
- Solving Multi-step Distance Problems
- Converting Time from 12-hour to 24-hour format
- Determining Length Using Fractions
- Finding the Total Distance Between Two Objects
- Finding the Distance Between Two Objects at a Certain Point in Time
- Finding The Total Time Given a Distance Between Two Objects
- Finding the Meeting Time Given Total Distance and Two Rates
- Finding Speed by Calculating Total Time
- Finding Speed by Calculating Total Distance
- Finding Speed when Objects Travel in Opposite Directions
- Overview of Challenge Speed Problems
- Finding Total Distance Using Ratios
- Finding Total Distance Using Multiple Steps - Word Problems
- Finding Speed Using Ratios
- Finding Speed Using Multiple Steps - Word Problems
- Finding Time Using Ratios
- Finding Time Using Multiple Steps - Word Problems
- Solving Length and Distance Problems Involving Time - Word Problems
- Calculating the Speed of the Current in a River - Word Problems

Measurement

- Introduction to Metric Measures: How Big is a Meter?
- Measuring Length in Meters
- Pictures: Comparing Length in Meters
- Adding Lengths in Meters
- Subtracting Lengths in Meters
- Calculating Distance in Meters
- Comparing Distances in Meters
- Measuring Lengths in Centimeters
- Comparing Lengths in Centimeters Using a Ruler
- Adding Lengths in Centimeters
- Subtracting Lengths in Centimeters
- Comparing Lengths in Centimeters - Word Problems
- Estimating Measure by Image: Centimeters or Meters?
- Estimating Measure by Description: Centimeters or Meters?
- Estimating the Metric Lengths of Objects by Image
- Comparing Metric Measures by Description: Longest Length
- Comparing Metric Measures by Description: Shortest Length

- Visual Differences in Length (English Units)
- Using Real Maps (English Lengths and Distances)
- Using Symbol Maps (English Lengths and Distances)
- Using Symbol Maps with Compound Units
- Length Comparisons Using Data Tables (English Units)
- Adding Unit Lengths in One Step (English Units)
- Adding or Subtracting Lengths in One Step (English Units)
- Adding and Subtracting Lengths to Determine the Longest
- Adding and Subtracting Lengths in Two Steps
- Multiplying Lengths (English Units)
- Dividing Lengths (English Units)
- Conversion Word Problems (English Units)
- Estimating Measure by Description - Multiple Choice

- Overview of Capacity (Metric Units)
- Visually Finding Capacity (Metric Units)
- Estimating Capacity Using Water (Metric Units)
- Finding the Capacity of Water with Illustrations (Metric Units)
- Finding the Amount of Water with Illustrations and Calculations (Metric Units)
- Overview of Capacity II (Metric Units)
- Comparing the Capacity and Volume of Three or More Containers (Metric Units)

- Overview of Capacity III (Metric Units)
- Calculating and Comparing Capacities with Illustrations (Metric Units)
- Multi-step Calculations to Find Capacity with Illustrations (Metric Units)
- One Step Metric Capacity with Addition and Subtraction - Word Problems
- Two-step Metric Capacity with Addition and Subtraction Using Pictures
- Two-step Metric Capacity with Addition and Subtraction
- Multiplication and Division Metric Capacity - Word Problems
- Multi-step Problems Using the Four Operations - Word Problems
- Challenging Problems Involving Capacity in Liters - Word Problems

- Overview of Conversion Between Cups, Pints, and Quarts
- Converting Pints to Cups
- Converting Cups to Pints
- Conversion Tables: Pints and Cups
- Converting Pints and Quarts by Pictures
- Converting Quarts to Pints
- Converting Pints to Quarts
- Conversion Tables: Quarts and Pints
- Converting Quarts and Cups by Pictures
- Converting Quarts to Cups
- Converting Cups to Quarts
- Conversion Tables: Cups and Quarts
- Converting Large Units to Small Units (English Units)
- Converting Small Units to Large Units (English Units)
- Conversion Tables: Quarts, Pints and Cups
- Overview of Cups, Pints and Quarts
- Overview of Conversion Between Gallons, Pints and Quarts
- Converting Gallons to Quarts
- Converting Quarts to Gallons
- Converting Gallons to Pints
- Converting Pints to Gallons
- Converting Between Gallons, Quarts and Pints
- Selecting the Correct Capacity Conversion (English Units)
- Overview of Comparison of Capacity (Gallons, Pints, and Quarts)
- Overview of Conversion Between Cups, Pints, Quarts and Gallons
- Converting Gallons to Cups
- Converting Cups to Gallons
- Converting Capacities Using Illustrations (English Units)
- Identify the Incorrect Capacity Conversion (English Units)
- Converting Between Gallons, Quarts, Pints and Cups
- Overview of Capacity - Word Problems

- Overview of Conversion Among Units of Measure for Capacity (English Units)
- Converting Pints and Cups into Cups
- Converting Quarts and Cups into Cups
- Converting Quarts and Pints into Cups
- Converting Gallons and Quarts into Cups
- Converting Quarts into Gallons and Quarts
- Converting Pints into Gallons and Quarts
- Arranging and Ordering Capacities (English Units)
- Comparing Capacities in Compound Units Using Words (English Units)
- Adding Capacities in Compound Units (English Units)
- Subtracting Capacities in Compound Units (English Units)
- Mixed Adding and Subtracting of Capacities (English Units)
- Determining the Amount Needed to Fill a Container (English Units)

- Overview of Measuring Capacity (Metric Units)
- Visually Finding Capacity in Milliliters
- Choosing the Correct Unit with Liters Or Milliliters
- Overview of Conversion of Capacity Units (Metric Units)
- Converting Between Liters and Milliliters
- Converting Between Liters and Milliliters II
- Converting Between Kiloliters and Liters
- Converting Between Kiloliters, Liters and Milliliters

- Overview of Length (English Units)
- Converting Compound Units to Inches
- Converting Compound Units to Feet
- Converting Inches to Compound Units
- Converting Feet to Compound Units
- Adding of Compound Units of Length (English Units)
- Subtraction of Compound Units of Length (English Units)
- Addition and Subtraction of Compound Units of Length (English Units)
- Greater or Less Than Comparisons of Length (English Units)
- Which Compound Unit is Longest? (English Units)
- Which Compound Unit is Shortest? (English Units)
- Ordering of Compound Units Beginning with Longest (English Units)
- Ordering of Compound Units Beginning with Shortest (English Units)
- Total Length in Compound Units (English Units)

- Lengths of Specific Segments (Metric Units)
- Perimeter Problems (Metric Units)
- Subtracting Lengths (Metric Units)
- Multiplication of Lengths (Metric Units)
- Multiplication and Division of Lengths
- Adding Compound Unit Lengths (Metric Units)
- Multiplying Compound Unit Lengths (Metric Units)
- Distances Between Points on One Route (Metric Units)

- Overview of Metric Capacity Operations
- Two-step Problems - Four Operations with Single Units (Metric Capacities) - Word Problems
- Challenge Problems - Four Operations with Single Units (Metric Capacities) - Word Problems
- Using Lists to Solve Multi-step Problems with Single Units (Metric Capacities) - Word Problems

- Visually Finding Weights and Calculate Totals (Metric Units)
- Finding the Different Weight from Tables (Metric Units)
- Visually Comparing Weight and Balancing a Scale (Metric Units)
- Using a Scale and Subtraction to Find Weight in Grams
- Using A Scale and Multi-step Calculations to Find Weight in Grams I
- Calculating Total Weight from Scales (Metric Units)
- Using Scales and Calculations to Find Totals and Make Comparisons (Metric Units)
- Using Scales to Find Heavier and Lighter Objects (Metric Units)
- Using Pictures to Balance a Scale (Metric Units)
- Overview of Weight in Metric Units
- Using a Scale and Multi-step Calculations to Find Weight in Grams II
- Subtracting Weights (Metric Units)
- Multiplying Weights (Metric Units)
- Dividing Weights (Metric Units)
- Overview of Complex Weight Problems (Metric Units)
- Solving Multi-step Weight Problems with Addition (Metric Units) - Word Problems
- Solving Multi-step Weight Problems with Subtraction (Metric Units) - Word Problems
- Totals and Comparisons with Addition and Subtraction (Metric Units)
- Solving Multi-step Problems with Addition and Subtraction (Metric Units) - Word Problems
- Solving Multi-step Problems with Multiplication and Division (Metric Units) - Word Problems
- Solving Two-step Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Solving Multi-step Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Solving Multi-step Single-unit Problems with Fractions (Metric Units) - Word Problems
- Complex Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Multi-step, Single-unit Picture Problems

- Overview of Capacity with Compound Units - Word Problems
- Multiplication and Division of Compound Units with Pictures - Word Problems
- Compound Unit Multiplication - Word Problems
- Mixed Operations with Compound Units Using Multiplication and Division - Word Problems
- Overview of Multi-step Capacity-based Word Problems
- Solving Two-step Compound-unit Problems with Four Operations
- Multi-step Word Problems in Four Operations with Compound Units
- Multi-step Division Problems with Compound Units

- Overview of Weight Problems (Metric Units)
- Using Scales and Calculations to Find Weights (Metric Units)
- Using Calculations to Find Totals and Compare Weights (Metric Units)
- One-step Subtraction Conversions with Compound Units (Metric Units) - Word Problems
- Multi-step Addition of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Addition and Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Subtraction then Multiplication of Weights with Compound Units (Metric Units) - Word Problems
- Multiplication then Addition of Weights with Compound Units (Metric Units) - Word Problems
- Multiplication then Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Four-operation Weight Problems (Metric Units) - Word Problems

- Overview of Conversion Between Units of Weight (English Units)
- Conversion of Pounds and Ounces into Ounces
- Conversion of Ounces into Pounds and Ounces
- Multiplying and Dividing (English Units)
- Using the Four Operations with Weights (English Units)
- Overview of Weight-based English-unit Word Problems
- Adding Weights (English Units) - Word Problems
- Subtracting Weights (English Units) - Word Problems
- Two-step Subtraction of Weights (English Units) - Word Problems
- Multiplying Weights (English Units) - Word Problems
- Multi-step Four-operation Weight Problems (English Units) - Word Problems

- Overview of Simple Time Conversions
- Converting Years to Months
- Converting Years into Weeks
- Converting Years to Days
- Converting Weeks to Days
- Converting Days to Hours
- Overview of Compound Time Conversions
- Converting Mixed Years and Months into Months
- Converting Months into Mixed Years and Months
- Converting Mixed Weeks and Days into Days
- Converting Days into Mixed Weeks and Days
- Converting Mixed Days and Hours into Hours
- Converting Hours into Mixed Days and Hours
- Overview of Addition and Subtraction of Time
- Adding Compound Units in Years and Months
- Subtracting Compound Units in Years and Months
- Adding Compound Units in Weeks and Days
- Subtracting Compound Units in Weeks and Days
- Adding Compound Units in Days and Hours
- Subtracting Compound Units in Days and Hours

- Overview of Metric Units of Weight
- Visually Finding Weight in Compound Units
- Visually Finding the Weight in Compound Units for Multiple Items
- Overview of Conversion of Metric Units of Weight
- Converting Grams into Kilograms and Grams
- Overview of Comparison of Weights (Metric Units)
- Selection Based on Weight (Metric Units)
- Ordering Based on Weight (Metric Units)
- Overview of Addition and Subtraction of Weights (Metric Units)
- Using Scales to Find and Compare Weights (Metric Units)
- Adding Compound Units (Metric Units)
- Subtracting Compound Units (Metric Units)
- Multi-step Adding and Subtracting Compound Units (Metric Units)

- Overview of Unit of Weight (English Units)
- Reading the Compound Units in Pounds and Ounces
- Overview of Conversion Among Units of Weight (English Units)
- Converting Pounds and Ounces into Ounces - Weight
- Converting Ounces into Pounds and Ounces - Weight
- Overview of Comparison of Weights (English Units)
- Arranging from Lightest to Heaviest (English Units)
- Comparing the Weights by Using Scales and Fill in the Blanks (English Units)
- Comparing Weights and Balancing a Scale (English Units)
- Comparing and Calculating Weights when Shopping (English Units)
- Overview of Addition and Subtraction of Weights (English Units)
- Adding Weight in Compound Units (English Units)
- Subtracting Weight in Compound Units (English Units)
- Mixed Addition and Subtraction in Compound Units (English Units)

Geometry

- Overview of Quarter-circles and Semi-circles
- Overview of Ellipses, Trapezoids, Rhombi, and Polygons
- Overview of Forming Figures with Cutouts
- Overview of Simple Figure Patterns
- Predicting the Next Shape in a Sequence of 2D and 3D Shapes
- Describing Patterns Using Letters
- Overview of Complex Figure Patterns
- Predicting the Next Shape in a Sequence of Complex Shapes

- Given the Perimeter, Find the Side Length and Area - Squares
- Given the Area, Find the Side Length and Perimeter - Squares
- Overview of Area and Perimeter of Rectangle
- Given the Perimeter and One Side, Find the Other Side and Area - Rectangles
- Given Area and One Side, Find the Other Side and Perimeter - Rectangles
- Overview of Area of Squares and Rectangles - Word Problems
- Area of Squares and Rectangles - Word Problems
- Overview of Composite Figures Composed of Squares and Rectangles
- Partitioning Composite Figures into Rectangles to Find Area 1
- Areas of Rectangular Composite Figures - Overlap 1
- Areas of Rectangular Composite Figures - Overlap 2
- Areas of Rectangular Composite Figures Challenge - Word Problems

- Overview: Sum of the Angles of a Triangle
- Determining the Unknown Angle in a Triangle
- Overview of Triangle Classifications
- Classifying Triangles as Right, Obtuse, or Acute by Identifying Angle Measurements
- Classifying Triangles Based on Equal Sides
- Classifying Triangles by Identifying the Number of Equal Sides
- Classifying All Types of Triangles by Lengths of Sides
- Classifying Triangles within Composite Figures
- Determining the Length of an Unknown Side of a Triangle
- Overview of Special Triangles
- Determining the Unknown Angle in a Right Triangle
- Determining the Unknown Angle in an Isosceles Triangle
- Determining Unknown Angles in Isosceles, Scalene, and Right Triangles
- Determining Unknown Angles in Composite Figures
- Determining Unknown Angles in Complex Composite Figures

- Overview of Angles
- Determining Whether an Angle is Formed
- Counting the Angles in a Closed Figure
- Comparing Angles
- Overview of Measurement of Angles
- Using a Protractor
- Measuring the Angle Using a Protractor
- Identifying the Angle Given the Measure
- Overview of Classification of Angles
- Classifying Angles as Right, Acute, or Obtuse
- Counting Right Angles in a Diagram
- Counting Right Angles in a Turn

- Overview of Addition (Sums to 1,000)
- Addition: 3 Digits
- Addition: Select the Correct Sentence
- Addition: Select the Incorrect Sentence
- Addition: Complete the Addition Sentence
- Overview of Subtraction (Numbers to 1,000)
- Subtraction: 3-digits Minus 2-digits
- Subtraction: 3-digits Minus 3-digits
- Subtraction: Select the Correct Sentence
- Subtraction: Select the Incorrect Sentence
- Subtraction: Complete the Subtraction Sentence

- Patterns in Division by 6, 7, 8, 9, 11, 12
- Division Terms
- Express the Sentence and Calculate - Division
- Finding the Expression not Equal to a Given Solution
- Finding the Number From the Figure Patterns
- Letter Replacement (Division)
- Using Multiplication Replacement to Find a New Amount
- Multiple Rounds of Multiplication - Multiplying 3 Digits by 1 Digit
- Multi-unit Calculations
- Dividing to Find the Time
- Dividing to Find the Unit Working Product
- Dividing Multi-digit Numbers by 1 Digit Numbers
- Estimating the Number Needed Using Remainders
- Finding the Total Number: Using Subtraction and Division
- Finding the Total Number: Given Remainder and Number Needed

- Multiplying 2-digit by 2-digit Numbers in Columns
- The Relationship Between Factors and Products
- Calculating from an Expression
- Comparing Using Greater Than, Less Than, and Equal To
- Multiplication Patterns Over Increasing Place Values
- Patterns Without Using Multiplication
- Shortening Multiplication Expressions
- Finding Number Patterns Involving Multiplication

- Dividing 3 and 4 Digit Numbers by 2 Digit Numbers
- Selecting the Correct Statement Given a Division Problem
- Selecting the Quotient Using Given Statements
- Identifying Correct Division with a Yes or No Answer
- The Relationship Between Dividend, Divisor and Quotient
- Comparing the Divisions
- Recognizing Patterns in Division Using Multiples of Ten
- Finding the Number of Digits in the Quotient
- Finding the Missing Number
- Finding the Range of Missing Numbers Given a Statement
- Finding the Minimum Number
- Finding the Minimum Number Given a Statement
- Finding the Maximum Number Given a Statement
- Dividing 2 Digits by 2 Digits with a Remainder
- Dividing 3 or 4 Digits by 2 Digits with a Remainder
- Finding the Remainder - Long Division Word Problems
- Filling in the Quotient - Long Division
- Filling in the Largest or Smallest Divisor

- Finding the Required Number of Groups - Word Problems
- Making an Even Group - Word Problems
- Finding the Total Amount - Word Problems
- Multiple Units and Multiplication - Word Problems
- Using Both Division and Multiplication - Word Problems
- Dividing then Multiply to Find the New Amount - Word Problems
- Finding the Adjusted Rate - Word Problems

- Adding and Subtracting
- Multiplying and Dividing
- Adding, Subtracting, and Multiplying
- Adding, Subtracting, Multiplying and Dividing
- Adding, Subtracting, and Multiplying with Parentheses
- Adding and Subtracting - Missing Number
- Adding and Subtracting - Missing Operation
- Multiplying and Dividing - Missing Number
- Multiplying and Dividing - Missing Operation
- Adding, Subtracting, and Multiplying - Missing Number
- Adding and Subtracting with Parentheses
- Four Operations - Missing Operation
- Adding, Subtracting, and Multiplying with Parentheses - Missing Operation
- Four Operations with Parentheses - Missing Operation
- Selecting the First Operation
- Placing the Missing Parentheses to Make the Equation True
- Selecting the Same Answer After Dismissed Parentheses
- Only Using Addition or Subtraction Symbols
- Changing One of the Operator Symbols
- Inserting the Signs of the Four Operations
- Selecting the Numbers From a Given Set
- Using the Basic Operator Symbols
- Using the Basic Operator Symbols and Parentheses

- Finding and Completing the Number Patterns
- Finding and Completing Growth Pattern Sequences
- Creating Largest and Smallest Numbers Given Digits
- Creating Largest and Smallest Numbers Given Variables and Digits
- Identifying Numbers Based on Statements Involving Place Value
- Smallest and Largest 3-digit Numbers From Given Digits
- Place Value Problems Involving Money
- Place Value Problems Involving Items
- Place Value Problems Involving Grouping of Items
- Multiplication Problems Involving Grouping of Items and Total Items
- Representing Numbers in Expanded Form I
- Identifying the Value of Digits Based On Place Value
- Identifying Place Value Given a Digit
- Recognizing Place Value of Digits in Numbers
- Calculating Sums (Numbers up to 100,000)
- Calculating Quotients (Numbers up to 100,000)
- Dual Place Value
- Mixed Review (Numbers up to 100,000)
- Comparing Values of Two Numbers II
- Using Greater Than and Less Than
- Comparing the Values of Numbers in a Set
- Comparing Numbers Originally in Word Form
- Comparing Sums or Differences (Numbers up to 100,000)
- Arranging Numbers in Specific Orders
- Completion of Number Patterns
- Before and After Problems
- Forming Largest and Smallest Numbers (Includes Even and Odd)
- Forming Numbers: Mixed
- Arbitrary Digits (Numbers up to 100,000)
- Number Riddles (Numbers up to 100,000)
- Turning Words into Numbers Using Place Value Models
- Turning Numbers into Words Using Place Value Models
- Selecting the Correct Statement Relating Words and Numbers
- Selecting True or False for Statements Relating Words and Numbers

- One-step Conversions Between Multiples of 10
- Identifying Place Value of Digits in Quotients
- Recognizing Place Value of Digits in Numbers II
- Numbers in Expanded Form
- Expanded Form Involving Words
- Comparing the Values of Two Numbers
- Comparing the Values of Numbers in a Set (Numbers up to 10 Million)
- Arranging Numbers in Increasing Order
- Arranging Numbers in Decreasing Order
- Completing Number Patterns
- Forming the Largest or Smallest Possible Number
- Forming the Largest or Smallest Possible Number (Even and Odd)

- Turning Numbers into Words within Word Problems
- One-step Conversions Between Hundreds, Tens, and Ones
- Representing Numbers in Expanded Form II
- Completing the Expanded Forms of Numbers (Place Values to 1,000)
- Identifying Values of Digits in Numbers
- Comparing Digit Values in Numbers (Place Values to 1,000)

- Overview - Tenths
- Identifying Decimals on a Number Line to Tenths
- Completing a Decimal Place Value Chart to Tenths
- Overview - Hundredths
- Identifying Decimals on a Number Line to Hundredths
- Completing a Decimal Place Value Chart up to Hundredths
- Overview - Thousandths
- Identifying Decimals On a Number Line to Thousandths
- Completing a Decimal Place Value Chart to Thousandths
- Overview - Equivalent Decimals Ending in Zero
- Identifying Equivalent Decimals Ending in Zero
- When Decimal Values are Changed by Removing a Zero

- Overview of Comparing Decimals
- Determining the Greatest and Least Value in a Set of Decimals
- Comparing Decimals with Whole Numbers Using Inequalities
- Arranging a Set of Decimals in Order of Decreasing Value
- Determining Which Decimal Falls Between Two Given Decimals
- Determining the Order of Decimals in Word Problems

- Overview of Decimal Addition
- Adding Decimals from the Thousandths Place to the Tens Place
- Adding Decimals by Inserting Place-holding Zeros
- Adding Decimals - Word Problems
- Overview of Decimal Subtraction
- Subtracting Decimals from the Thousandths Place to the Tens Place
- Subtracting Decimals by Inserting Place-holding Zeroes

- Overview of Telling Time to Quarter and Hour
- Looking at the Clock and Telling the Time
- Writing Times in Numbers
- Overview of Time Conversion Between Words and Numbers
- Expressing the Time in Digits Using a Colon
- Time Expressed in Multiple Ways - Word Problems
- Overview of Analog and Digital Clocks
- Matching the Time to the Clock
- Matching the Analog and Digital Clocks
- Telling the Time - Before and After

- Overview of Telling Time to 1-minute Intervals
- Overview of Elapsed Time
- Determining Beginning, Ending, and Elapsed Time Using Two Clocks
- Determining Beginning, Ending, and Elapsed Time Using a Timeline
- Beginning, Ending, and Elapsed Time with Clocks - Word Problems
- Solving Word Problems for Elapsed Time Without Clocks
- Overview of Schedules and Timelines
- Using Timelines to 1-minute Increments
- Reading Schedules
- Transportation Schedules 1
- Transportation Schedules 2
- Overview of Duration of Time with a 12-hour Clock
- Ending Time in 5-minute Intervals - Word Problems
- Beginning Time in 5-minute Intervals - Word Problems
- Elapsed Time in a Sequence of Events - Word Problems
- Finding the Difference Between Two Time Intervals
- Solving for Elapsed Time Related to Rate
- Solving Multi-step Problems Involving Time

- Overview of 24-hour Clocks
- Converting Time from a 24-hour Clock to a 12-hour Clock
- Converting Time from a 12-hour Clock to a 24-hour Clock
- Writing Time Using 12-hour and 24-hour Clocks
- Overview of 24 Hour Time Format
- Finding the Time with a Timeline
- Elapsed Time - Finding the Ending Time (Single Step)
- Determining Duration Time - One Step
- Overview of Choosing Appropriate Time Units
- Elapsed Time - Finding the Start Time (Multiple Steps)
- Determining Task Length

- Overview of Speed Based Problems
- Total Length - Challenge Problems
- Time and Rate Problems
- Distance Between Items
- Lengths of Three Objects
- Determining Missing Length
- Determining Rate
- Determining the Sum of Parts
- Solving Multi-step Distance Problems
- Converting Time from 12-hour to 24-hour format
- Determining Length Using Fractions
- Finding the Total Distance Between Two Objects
- Finding the Distance Between Two Objects at a Certain Point in Time
- Finding The Total Time Given a Distance Between Two Objects
- Finding the Meeting Time Given Total Distance and Two Rates
- Finding Speed by Calculating Total Time
- Finding Speed by Calculating Total Distance
- Finding Speed when Objects Travel in Opposite Directions
- Overview of Challenge Speed Problems
- Finding Total Distance Using Ratios
- Finding Total Distance Using Multiple Steps - Word Problems
- Finding Speed Using Ratios
- Finding Speed Using Multiple Steps - Word Problems
- Finding Time Using Ratios
- Finding Time Using Multiple Steps - Word Problems
- Solving Length and Distance Problems Involving Time - Word Problems
- Calculating the Speed of the Current in a River - Word Problems

- Introduction to Metric Measures: How Big is a Meter?
- Measuring Length in Meters
- Pictures: Comparing Length in Meters
- Adding Lengths in Meters
- Subtracting Lengths in Meters
- Calculating Distance in Meters
- Comparing Distances in Meters
- Measuring Lengths in Centimeters
- Comparing Lengths in Centimeters Using a Ruler
- Adding Lengths in Centimeters
- Subtracting Lengths in Centimeters
- Comparing Lengths in Centimeters - Word Problems
- Estimating Measure by Image: Centimeters or Meters?
- Estimating Measure by Description: Centimeters or Meters?
- Estimating the Metric Lengths of Objects by Image
- Comparing Metric Measures by Description: Longest Length
- Comparing Metric Measures by Description: Shortest Length

- Visual Differences in Length (English Units)
- Using Real Maps (English Lengths and Distances)
- Using Symbol Maps (English Lengths and Distances)
- Using Symbol Maps with Compound Units
- Length Comparisons Using Data Tables (English Units)
- Adding Unit Lengths in One Step (English Units)
- Adding or Subtracting Lengths in One Step (English Units)
- Adding and Subtracting Lengths to Determine the Longest
- Adding and Subtracting Lengths in Two Steps
- Multiplying Lengths (English Units)
- Dividing Lengths (English Units)
- Conversion Word Problems (English Units)
- Estimating Measure by Description - Multiple Choice

- Overview of Capacity (Metric Units)
- Visually Finding Capacity (Metric Units)
- Estimating Capacity Using Water (Metric Units)
- Finding the Capacity of Water with Illustrations (Metric Units)
- Finding the Amount of Water with Illustrations and Calculations (Metric Units)
- Overview of Capacity II (Metric Units)
- Comparing the Capacity and Volume of Three or More Containers (Metric Units)

- Overview of Capacity III (Metric Units)
- Calculating and Comparing Capacities with Illustrations (Metric Units)
- Multi-step Calculations to Find Capacity with Illustrations (Metric Units)
- One Step Metric Capacity with Addition and Subtraction - Word Problems
- Two-step Metric Capacity with Addition and Subtraction Using Pictures
- Two-step Metric Capacity with Addition and Subtraction
- Multiplication and Division Metric Capacity - Word Problems
- Multi-step Problems Using the Four Operations - Word Problems
- Challenging Problems Involving Capacity in Liters - Word Problems

- Overview of Conversion Between Cups, Pints, and Quarts
- Converting Pints to Cups
- Converting Cups to Pints
- Conversion Tables: Pints and Cups
- Converting Pints and Quarts by Pictures
- Converting Quarts to Pints
- Converting Pints to Quarts
- Conversion Tables: Quarts and Pints
- Converting Quarts and Cups by Pictures
- Converting Quarts to Cups
- Converting Cups to Quarts
- Conversion Tables: Cups and Quarts
- Converting Large Units to Small Units (English Units)
- Converting Small Units to Large Units (English Units)
- Conversion Tables: Quarts, Pints and Cups
- Overview of Cups, Pints and Quarts
- Overview of Conversion Between Gallons, Pints and Quarts
- Converting Gallons to Quarts
- Converting Quarts to Gallons
- Converting Gallons to Pints
- Converting Pints to Gallons
- Converting Between Gallons, Quarts and Pints
- Selecting the Correct Capacity Conversion (English Units)
- Overview of Comparison of Capacity (Gallons, Pints, and Quarts)
- Overview of Conversion Between Cups, Pints, Quarts and Gallons
- Converting Gallons to Cups
- Converting Cups to Gallons
- Converting Capacities Using Illustrations (English Units)
- Identify the Incorrect Capacity Conversion (English Units)
- Converting Between Gallons, Quarts, Pints and Cups
- Overview of Capacity - Word Problems

- Overview of Conversion Among Units of Measure for Capacity (English Units)
- Converting Pints and Cups into Cups
- Converting Quarts and Cups into Cups
- Converting Quarts and Pints into Cups
- Converting Gallons and Quarts into Cups
- Converting Quarts into Gallons and Quarts
- Converting Pints into Gallons and Quarts
- Arranging and Ordering Capacities (English Units)
- Comparing Capacities in Compound Units Using Words (English Units)
- Adding Capacities in Compound Units (English Units)
- Subtracting Capacities in Compound Units (English Units)
- Mixed Adding and Subtracting of Capacities (English Units)
- Determining the Amount Needed to Fill a Container (English Units)

- Overview of Measuring Capacity (Metric Units)
- Visually Finding Capacity in Milliliters
- Choosing the Correct Unit with Liters Or Milliliters
- Overview of Conversion of Capacity Units (Metric Units)
- Converting Between Liters and Milliliters
- Converting Between Liters and Milliliters II
- Converting Between Kiloliters and Liters
- Converting Between Kiloliters, Liters and Milliliters

- Overview of Length (English Units)
- Converting Compound Units to Inches
- Converting Compound Units to Feet
- Converting Inches to Compound Units
- Converting Feet to Compound Units
- Adding of Compound Units of Length (English Units)
- Subtraction of Compound Units of Length (English Units)
- Addition and Subtraction of Compound Units of Length (English Units)
- Greater or Less Than Comparisons of Length (English Units)
- Which Compound Unit is Longest? (English Units)
- Which Compound Unit is Shortest? (English Units)
- Ordering of Compound Units Beginning with Longest (English Units)
- Ordering of Compound Units Beginning with Shortest (English Units)
- Total Length in Compound Units (English Units)

- Lengths of Specific Segments (Metric Units)
- Perimeter Problems (Metric Units)
- Subtracting Lengths (Metric Units)
- Multiplication of Lengths (Metric Units)
- Multiplication and Division of Lengths
- Adding Compound Unit Lengths (Metric Units)
- Multiplying Compound Unit Lengths (Metric Units)
- Distances Between Points on One Route (Metric Units)

- Overview of Metric Capacity Operations
- Two-step Problems - Four Operations with Single Units (Metric Capacities) - Word Problems
- Challenge Problems - Four Operations with Single Units (Metric Capacities) - Word Problems
- Using Lists to Solve Multi-step Problems with Single Units (Metric Capacities) - Word Problems

- Visually Finding Weights and Calculate Totals (Metric Units)
- Finding the Different Weight from Tables (Metric Units)
- Visually Comparing Weight and Balancing a Scale (Metric Units)
- Using a Scale and Subtraction to Find Weight in Grams
- Using A Scale and Multi-step Calculations to Find Weight in Grams I
- Calculating Total Weight from Scales (Metric Units)
- Using Scales and Calculations to Find Totals and Make Comparisons (Metric Units)
- Using Scales to Find Heavier and Lighter Objects (Metric Units)
- Using Pictures to Balance a Scale (Metric Units)
- Overview of Weight in Metric Units
- Using a Scale and Multi-step Calculations to Find Weight in Grams II
- Subtracting Weights (Metric Units)
- Multiplying Weights (Metric Units)
- Dividing Weights (Metric Units)
- Overview of Complex Weight Problems (Metric Units)
- Solving Multi-step Weight Problems with Addition (Metric Units) - Word Problems
- Solving Multi-step Weight Problems with Subtraction (Metric Units) - Word Problems
- Totals and Comparisons with Addition and Subtraction (Metric Units)
- Solving Multi-step Problems with Addition and Subtraction (Metric Units) - Word Problems
- Solving Multi-step Problems with Multiplication and Division (Metric Units) - Word Problems
- Solving Two-step Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Solving Multi-step Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Solving Multi-step Single-unit Problems with Fractions (Metric Units) - Word Problems
- Complex Single-unit Problems with Four Operations (Metric Units) - Word Problems
- Multi-step, Single-unit Picture Problems

- Overview of Capacity with Compound Units - Word Problems
- Multiplication and Division of Compound Units with Pictures - Word Problems
- Compound Unit Multiplication - Word Problems
- Mixed Operations with Compound Units Using Multiplication and Division - Word Problems
- Overview of Multi-step Capacity-based Word Problems
- Solving Two-step Compound-unit Problems with Four Operations
- Multi-step Word Problems in Four Operations with Compound Units
- Multi-step Division Problems with Compound Units

- Overview of Weight Problems (Metric Units)
- Using Scales and Calculations to Find Weights (Metric Units)
- Using Calculations to Find Totals and Compare Weights (Metric Units)
- One-step Subtraction Conversions with Compound Units (Metric Units) - Word Problems
- Multi-step Addition of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Addition and Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Subtraction then Multiplication of Weights with Compound Units (Metric Units) - Word Problems
- Multiplication then Addition of Weights with Compound Units (Metric Units) - Word Problems
- Multiplication then Subtraction of Weights with Compound Units (Metric Units) - Word Problems
- Multi-step Four-operation Weight Problems (Metric Units) - Word Problems

- Overview of Conversion Between Units of Weight (English Units)
- Conversion of Pounds and Ounces into Ounces
- Conversion of Ounces into Pounds and Ounces
- Multiplying and Dividing (English Units)
- Using the Four Operations with Weights (English Units)
- Overview of Weight-based English-unit Word Problems
- Adding Weights (English Units) - Word Problems
- Subtracting Weights (English Units) - Word Problems
- Two-step Subtraction of Weights (English Units) - Word Problems
- Multiplying Weights (English Units) - Word Problems
- Multi-step Four-operation Weight Problems (English Units) - Word Problems

- Overview of Simple Time Conversions
- Converting Years to Months
- Converting Years into Weeks
- Converting Years to Days
- Converting Weeks to Days
- Converting Days to Hours
- Overview of Compound Time Conversions
- Converting Mixed Years and Months into Months
- Converting Months into Mixed Years and Months
- Converting Mixed Weeks and Days into Days
- Converting Days into Mixed Weeks and Days
- Converting Mixed Days and Hours into Hours
- Converting Hours into Mixed Days and Hours
- Overview of Addition and Subtraction of Time
- Adding Compound Units in Years and Months
- Subtracting Compound Units in Years and Months
- Adding Compound Units in Weeks and Days
- Subtracting Compound Units in Weeks and Days
- Adding Compound Units in Days and Hours
- Subtracting Compound Units in Days and Hours

- Overview of Metric Units of Weight
- Visually Finding Weight in Compound Units
- Visually Finding the Weight in Compound Units for Multiple Items
- Overview of Conversion of Metric Units of Weight
- Converting Grams into Kilograms and Grams
- Overview of Comparison of Weights (Metric Units)
- Selection Based on Weight (Metric Units)
- Ordering Based on Weight (Metric Units)
- Overview of Addition and Subtraction of Weights (Metric Units)
- Using Scales to Find and Compare Weights (Metric Units)
- Adding Compound Units (Metric Units)
- Subtracting Compound Units (Metric Units)
- Multi-step Adding and Subtracting Compound Units (Metric Units)

- Overview of Unit of Weight (English Units)
- Reading the Compound Units in Pounds and Ounces
- Overview of Conversion Among Units of Weight (English Units)
- Converting Pounds and Ounces into Ounces - Weight
- Converting Ounces into Pounds and Ounces - Weight
- Overview of Comparison of Weights (English Units)
- Arranging from Lightest to Heaviest (English Units)
- Comparing the Weights by Using Scales and Fill in the Blanks (English Units)
- Comparing Weights and Balancing a Scale (English Units)
- Comparing and Calculating Weights when Shopping (English Units)
- Overview of Addition and Subtraction of Weights (English Units)
- Adding Weight in Compound Units (English Units)
- Subtracting Weight in Compound Units (English Units)
- Mixed Addition and Subtraction in Compound Units (English Units)

- Overview of Quarter-circles and Semi-circles
- Overview of Ellipses, Trapezoids, Rhombi, and Polygons
- Overview of Forming Figures with Cutouts
- Overview of Simple Figure Patterns
- Predicting the Next Shape in a Sequence of 2D and 3D Shapes
- Describing Patterns Using Letters
- Overview of Complex Figure Patterns
- Predicting the Next Shape in a Sequence of Complex Shapes

- Given the Perimeter, Find the Side Length and Area - Squares
- Given the Area, Find the Side Length and Perimeter - Squares
- Overview of Area and Perimeter of Rectangle
- Given the Perimeter and One Side, Find the Other Side and Area - Rectangles
- Given Area and One Side, Find the Other Side and Perimeter - Rectangles
- Overview of Area of Squares and Rectangles - Word Problems
- Area of Squares and Rectangles - Word Problems
- Overview of Composite Figures Composed of Squares and Rectangles
- Partitioning Composite Figures into Rectangles to Find Area 1
- Areas of Rectangular Composite Figures - Overlap 1
- Areas of Rectangular Composite Figures - Overlap 2
- Areas of Rectangular Composite Figures Challenge - Word Problems

- Overview: Sum of the Angles of a Triangle
- Determining the Unknown Angle in a Triangle
- Overview of Triangle Classifications
- Classifying Triangles as Right, Obtuse, or Acute by Identifying Angle Measurements
- Classifying Triangles Based on Equal Sides
- Classifying Triangles by Identifying the Number of Equal Sides
- Classifying All Types of Triangles by Lengths of Sides
- Classifying Triangles within Composite Figures
- Determining the Length of an Unknown Side of a Triangle
- Overview of Special Triangles
- Determining the Unknown Angle in a Right Triangle
- Determining the Unknown Angle in an Isosceles Triangle
- Determining Unknown Angles in Isosceles, Scalene, and Right Triangles
- Determining Unknown Angles in Composite Figures
- Determining Unknown Angles in Complex Composite Figures

- Overview of Angles
- Determining Whether an Angle is Formed
- Counting the Angles in a Closed Figure
- Comparing Angles
- Overview of Measurement of Angles
- Using a Protractor
- Measuring the Angle Using a Protractor
- Identifying the Angle Given the Measure
- Overview of Classification of Angles
- Classifying Angles as Right, Acute, or Obtuse
- Counting Right Angles in a Diagram
- Counting Right Angles in a Turn

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