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Integers & Absolute Value. Integers & Absolute Value. Objective: 7.1.02 Develop fluency in addition, subtraction, multiplication, and division or rational numbers. Essential Question: How do I identify, compare, and order integers?. Vocabulary: Integer Opposites Number Line

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Integers & Absolute Value

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Integers & Absolute Value


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Integers & Absolute Value

Objective:

7.1.02 Develop fluency in addition, subtraction, multiplication, and division or rational numbers.

Essential Question:

How do I identify, compare, and order integers?


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Vocabulary:

Integer

Opposites

Number Line

Absolute Value

Rational Number

Integers & Absolute Value


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WHERE DO WE

SEE INTEGERS IN

OUR DAILY LIVES

Integers & Absolute Value


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Integers less than zero Integers greater than zero

are negative integers are positive integers

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

negatives arezero is neither positives CAN

written with negative nor be written

a (-) sign positive with a (+) sign

Integers & Absolute Value


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5 positivesIntegers greater than zero

4 are written are positive integers

3 with + sign

2

1zero is neither

0 negative nor

-1 positive

-2

-3 negatives

-4 written withIntegers less than zero

-5a - sign are negative integers

Integers & Absolute Value


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Writing Integers in Real-Life Situations

Write an integer to describe each situation

Example 1: an increase of 6 inches

Example 2:scored 10 fewer points

Example 3:a loss of 7 pounds

Example 4:earned 5 dollars interest

Example 5:a temperature of 9 degrees below zero

Integers & Absolute Value


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Writing Integers in Real-Life Situations

Write an integer to describe each situation

Example 1: an increase of 6 inches → + 6

Example 2:scored 10 fewer points → - 10

Example 3:a loss of 7 pounds → - 7

Example 4:earned 5 dollars interest → + 5

Example 5:a temperature of 9 degrees below zero → - 9

Integers & Absolute Value


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Graphing integers on a Number Line

Graph each integer on the number line

Example 1: Graph - 4 on the number line

Example 2:Graph - 8 on the number line

Example 3:Graph + 10 on the number line

Example 4:Graph + 2 on the number line

-10 -8 -6 -4 -2 0 2 4 6 8 10

Integers & Absolute Value


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Graphing integers on a Number Line

Graph each integer on the number line

Example 1: Graph - 4 on the number line

Example 2:Graph - 8 on the number line

Example 3:Graph + 10 on the number line

Example 4:Graph + 2 on the number line

-10 -8 -6 -4 -2 0 2 4 6 8 10

Integers & Absolute Value


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What is absolute value?

The distance of some number from zero on the number line

What does absolute value look like?

the absolute

value of 7| 7| = 7

the absolute

value of – 7| –7| = 7

Integers & Absolute Value


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What is absolute value?

The distance of some number from zero on the number line

What does absolute value look like?

7 units 7 units

-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

Integers & Absolute Value


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Absolute Value

Evaluate the expression.

Example 1:| 3|

Example 2:| - 68|

Example 3:| 6| + | - 9|

Example 4:| - 8|-| - 9|

Integers & Absolute Value


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Absolute Value

Evaluate the expression.

Example 1:| 3|= 3

Example 2:| - 68| = 68

Example 3:| 6| + | - 9|= 15

Example 4:| - 8|-| - 9|= –1

Integers & Absolute Value


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Extension

The number shows the

amounts of money Erica,

Jerry, Bob, and Ray

have in their wallets or

owe one of their parents.

Who has the most money?

Who has the least money?

Who owes four dollars?

Integers & Absolute Value

10

Ray

8

6

4

Erica

2

0

- 2

Jerry

- 4

- 6

- 8

Bob

-10


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Integers & Absolute Value

Extension

The number shows the

amounts of money Erica,

Jerry, Bob, and Ray

have in their wallets or

owe one of their parents.

Who has the most money? Ray

Who has the least money? Rob

Who owes four dollars? Jerry

10

Ray

8

6

4

Erica

2

0

- 2

Jerry

- 4

- 6

- 8

Bob

-10


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Comparing Integers

Replace the □ with <, >, or = to make the sentence true.

Example 1:- 9 □ 8

Example 2:83 □ 84

Example 3:5□ - 5

Example 4:- 6 □ - 4

Example 5:- 7 □ - 7

Integers & Absolute Value


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Comparing Integers

Replace the □ with <, >, or = to make the sentence true.

Example 1:- 9 □ 8 → - 9 < 8

Example 2:83 □ 84 → 83 < 84

Example 3:5□ - 5 → 5 > - 5

Example 4:- 6 □ - 4 → - 6 < - 4

Example 5:- 7 □ - 7 → - 7 = - 7

Integers & Absolute Value


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Ordering Integers

Order each set of integers from least to greatest.

Example 1:- 162, - 10, - 81, 59

Example 2:9, - 8, 4, - 9

Example 3:2, 6, - 2, 0

Example 4:7, 5, - 1, - 5

Integers & Absolute Value


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Ordering Integers

Order each set of integers from least to greatest.

Example 1:- 162, - 10, - 81, 59 →

- 162, - 81, - 10, 59

Example 2:9, - 8, 4, - 9 → - 9, - 8, 4, 9

Example 3:2, 6, - 2, 0 → - 2, 0, 2, 6

Example 4:7, 5, - 1, - 5 → - 5, - 1, 5, 7

Integers & Absolute Value


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Extension

Evaluate 6 + |n | if b = - 16.

Integers & Absolute Value


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Extension

Evaluate 6 + |n | if b = - 16.

6 + |n | = 6 + |- 16|

= 6 + 16

= 22

Integers & Absolute Value


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Homework

Core 01 and 03 – p.36 #1 – 48, all

Core 02 – p.59-60 #20 – 50, all

Integers & Absolute Value


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