Multiplying and Dividing Integers

Standard

7.N.6 Use the inverse relationships of addition and subtraction, and of multiplication and division, to simplify computations and solve problems, e.g., multiplying by 1/2 or 0.5 is the same as dividing by 2.

Cluster

C11

Objective

To multiply integers using repeated addition, patterns and rules

To divide intgers using rules

 

Lesson

 

Multiplying

Examples for the rules

3(4) = 12

3(-4) = 12

-3 (4) = -12

-3 (-4) = -12 

 Dividing Integers


Examples for the rules

12 -:- 3 = 4

12 -:- (-3) = -4

-12 -:-  3 = -4

-12 -:- (-3) = 4 

 

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