1.2 Multiplying and Dividing Integers

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Presentation transcript:

1.2 Multiplying and Dividing Integers Objective: Multiply and divide integers.

Multiplication/Division Sign Chart + + + + - - - + - - - +

Multiplication/Division Sign Triangle - - +

Examples 5 ∙ -7 -3 ∙ 8 -4 ∙ -9

Calculator Tips Try typing these both into your calculator: -52 (-5)2 What happens? Here is the real tip…why are you typing this into your calculator?

Commutative Property of Multiplication Simply put: If the there is only multiplication, you can multiply in any order you want. Look for compatible numbers.

More than two numbers being multiplied together Count the negative signs: 1) If it is an odd amount the final product is negative. 2) If it is an even amount the final product is positive.

Examples

Homework 1.2 Worksheet