1. 1.2 Multiplying and Dividing Integers
Objective:
Multiply and divide integers.

2. Multiplication/Division Sign Chart+ + + + - - - + - - - +

3. Multiplication/Division Sign Triangle- - +

4. Examples
5 ∙ ∙ 8 -4 ∙ -9

5. 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?

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

7. 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.

8. Examples

9. Homework
1.2 Worksheet