1. Multiply and Divide Integers

2. We will multiply or divide integers like we do whole numbers
We will multiply or divide integers like we do whole numbers. We just need to watch for the signs.
These numbers are both positive
Multiplication is repeated addition
Represents the number repeated
5 X 3 5
Represents how many times to repeat 5 + 5 +
= 15

3. - - - 5 X 3 = -5 + -5 + -5 = -15 5 X 3 = -5 5 + + -5 5 + + -5 5 = -15─
5 X 3 = -5 + -5 + -5 =
-15
Ex 1)
Ex 2)
5 X 3 = -5 5 + + -5 5 + + -5 5 ─ =
-15
Opposite - - - 15
Ex 3) ─
5 X 3 ─ = 5 + 5 + 5 =
Opposite

4. - - Rules + Positive times Positive Positive Negative times Negative
Positive times Negative
Negative

5. 9 X -3 = -27 -6 X 4 = -24 -6 X - 12 = 72 -3 X -6 X 2 = 36 -4 X -5 X -6
Ex 4)
9 X -3
= -27
-6 X 4
= -24
Ex 5)
-6 X - 12
= 72
Ex 6)
-3 X -6 X 2
= 36
Ex 7)
-4 X -5 X -6
= -120
Ex 8)

6. Division uses same rules
Ex 9)
15 ÷ 3
= 5
-60 ÷ 5
= -12
Ex 10)
96 ÷ - 3
= - 32
Ex 11)
- 720
= - 90
Ex 12) 8
= 2
Ex 13) -7

7. Essential Question
Explain how to multiply more than two integers?

8. Notes start here

9. Multiply and Divide Integers
Date _____________
Multiply and Divide Integers

10. We will multiply or divide integers like we do whole numbers
We will multiply or divide integers like we do whole numbers. We just need to watch for the signs.
Multiplication __ _________ ___________
These numbers are both positive
Represents the number _________
5 X 3
Represents how many _______ ___ ________

11. Ex 1)
Ex 2)
Ex 3)

12. Rules Positive times Positive Negative times Negative
Positive times Negative

13. Ex 4)
Ex 5)
Ex 6)
Ex 7)
Ex 8)

14. Division uses same rules
Ex 9)
Ex 10)
Ex 11)
Ex 12)
Ex 13)

15. Essential Question
Explain how to multiply more than two integers?