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Integer Operations

Integer Operations

Assessment

Presentation

Mathematics

7th - 8th Grade

Practice Problem

Medium

CCSS
7.NS.A.1C, 7.NS.A.2A, 7.NS.A.2B

Standards-aligned

Created by

Frances Nicolaides

Used 180+ times

FREE Resource

8 Slides • 15 Questions

1

Integer Operations

Today, we are reviewing how to add, subtract, multiply and divide integers.

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2

Adding Integers

  • When you are adding two positive integers there is an increase in value

  • When you are adding a positive and a negative integer there is a decrease in value

  • When you are adding a negative and a positive integer there is an increase in value

  • When you are adding two negative integers there is a decrease in value

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3

Examples:

(+2) + (+10) = +12

(+5) + (-2) = +3

(-3) + (+6) = +3

(-5) + (-6) = -11

4

Multiple Choice

(+4) + (+2)

1

-6

2

+6

3

2

4

-2

5

Multiple Choice

(+5) + (-2)

1

+3

2

+7

3

-7

4

-3

6

Multiple Choice

(-4) + (+5)

1

-9

2

-1

3

+9

4

+1

7

Multiple Choice

(-4) + (-6)

1

-10

2

+2

3

-2

4

+10

8

Subtracting Integers

  • When you are subtracting two positive integers there is a decrease in value

  • When you are subtracting a positive and a negative integer there is an increase in value

  • When you are subtracting a negative and a positive integer there is a decrease in value

  • When you are subtracting two negative integers there is an increase in value

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9

Examples:

(+2) - (+10) = -8

(+5) - (-2) = +7

(-3) - (+6) = -9

(-5) - (-6) = +1

10

Multiple Choice

(+5) - (+3)

1

-2

2

+8

3

+2

4

-8

11

Multiple Choice

(+7) - (-2)

1

+9

2

+5

3

-5

4

-9

12

Multiple Choice

(-6) - (+4)

1

+10

2

-2

3

+2

4

-10

13

Multiple Choice

(-3) - (-4)

1

+1

2

+7

3

-7

4

-1

14

Rules for Multiplying Integers

  • When you multiply two numbers with the SAME sign you will get a positive answer

  • When you multiply two numbers with DIFFERENT sings you will get a negative answer

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15

Multiple Choice

(-2)(-2)

1

-4

2

+4

16

Multiple Choice

(+4)(+6)

1

+24

2

-24

17

Multiple Choice

(-5)(2)

1

-10

2

+10

18

Rules for Dividing Integers

  • The rules for dividing integers are the same as multiplying integers

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19


This graphic is a great tool for helping you to remember the rules when it comes to multiplying and dividing integers.

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20

Multiple Choice

 10 ÷ 210\ \div\ 2   

1

5

2

-5

21

Multiple Choice

 24 ÷ 6-24\ \div\ 6  

1

+4

2

-4

22

Multiple Choice

 32 ÷ 8-32\ \div\ 8  

1

-4

2

+4

23

Multiple Choice

 72 ÷ 8-72\ \div\ 8  

1

-9

2

+9

Integer Operations

Today, we are reviewing how to add, subtract, multiply and divide integers.

Slide image

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