# Chapter 2: Using Rational Numbers

Difficulty Level:

**Basic**Created by: CK-12

## Introduction

In this chapter, students will engage with the following concepts: adding, subtracting, multiplying and dividing decimals, fractions and integers, estimation with decimals and fractions, integer operations and problem solving, problem solving with decimals, fractions and integers, identifying and comparing rational numbers, and using number properties with decimals, fractions and integers.

Chapter Outline

- 2.1.
## Add and Subtract Decimals

- 2.2.
## Estimate Sums and Differences Using Front-End Estimation

- 2.3.
## Multiply and Divide Decimals With and Without Rounding

- 2.4.
## Estimate Products and Quotients Using Leading Coefficients

- 2.5.
## Identify and Apply Number Properties in Decimal Operations

- 2.6.
## Add and Subtract Fractions and Mixed Numbers

- 2.7.
## Estimate Sums and Differences of Fractions and Mixed Numbers

- 2.8.
## Multiply and Divide Fractions and Mixed Numbers

- 2.9.
## Estimate Products and Quotients of Fractions and Mixed Numbers

- 2.10.
## Identify and Apply Number Properties in Fraction Operations

- 2.11.
## Add and Subtract Integers

- 2.12.
## Multiply and Divide Integers

- 2.13.
## Identify and Apply Number Properties in Integer Operations

- 2.14.
## Use Simple Integer Equations to Solve Real-World Problems

- 2.15.
## Find Equivalent Forms of Rational Numbers

- 2.16.
## Compare and Order Rational Numbers

- 2.17.
## Solve Real-World Problems Using Rational Numbers and Simple Equations

### Chapter Summary

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Description

This chapter covers: adding, subtracting, multiplying and dividing decimals, fractions and integers, estimation with decimals and fractions, integer operations and problem solving, problem solving with decimals, fractions and integers, identifying and comparing rational numbers, and using number properties with decimals, fractions and integers.

Difficulty Level:

Basic
Subjects:

Grades:

Date Created:

Sep 20, 2013
Last Modified:

Jun 16, 2016
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