Absolute Value

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Lesson notes on Absolute Value

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Agenda Thurs. Oct. 29

Homework 24 p. 20 # 22 - 27, 35, 36, 38, 44 - 46

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Correct homework

1-4 continued - Absolute Value

How many units away from zero is -10 ?

Answer10 units

The number of units, or distance, between an integer and zero is called the absolute value.

0 +10 +20 +30-10-20-30

How many units away from zero is +10 ?

Answer10 units

Frayer Model

Examples Nonexamples

Definition Characteristics

absolute value

a number's distance from zero on the number line

The absolute value of an integer is never negative because it asks, "How far away is it from zero?"

0 +5 +15 +25-5-15-25

Click on the arrow to help you decide if negative 15 and positive 15 are the same distance from zero.

Yes! No!

Click and drag the integers below to the correct column.

Absolute Value

Absolute value is written with 2 bars around the number. ex. l3l, l-4l

-6 6

Pu

llPu

ll

Remember that absolute value means how far it is away from zero.

Absolute value is NEVER negative.

10 2 3 4 5 6 7 8 9 10-1-2-3-4-5-6-7-8-9-10

-6 6

Pu

llPu

ll

Remember that absolute value means how far it is away from zero.

Absolute value is NEVER negative.

10 2 3 4 5 6 7 8 9 10-1-2-3-4-5-6-7-8-9-10

4 4

Independent Practice

Find the absolute value.

1. l 7 l 2. l -8 l3. l 81 l4. l -79 l5. l 23 l

78817923

Match pairs of absolute values.

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