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# Number Lines

## On a number line, values can represent any real number. Number lines are useful dealing with concepts like absolute value, and real numbers.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• PLIX

## Number Lines: Freezing Cold Comparison

by CK-12 //basic

Number Lines Interactive

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• PLIX

## Number Lines: Number Towers

by CK-12 //basic

Number Lines Interactive

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• Video

## Inequalities on a Number Line

by CK-12 //basic

Shows how to represent an inequality on a number line.

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• Video

## Graphing Real Numbers on a Number Line - Overview

by CK-12 //basic

Overview

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• Video

## Graphing Real Numbers on a Number Line - Example 1

by CK-12 //basic

Graphing Integers on a Number Line

1
• Video

## Graphing Real Numbers on a Number Line - Example 2

by CK-12 //basic

Graphing Rational Numbers on a Number Line

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• Video

## Graphing Real Numbers on a Number Line - Example 3

by CK-12 //basic

Graphing Irrational Numbers on a Number Line

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