we will multiply or divide integers like we do whole numbers. we just need to watch for the signs. 5...
TRANSCRIPT
We will multiply or divide integers like we do whole numbers. We just need to watch for the signs.
5 X 3
These numbers are both positive Multiplication is repeated addition
Represents the number repeated
Represents how many times to repeat
5
5 5+ + = 15
5 X 3
5 X 3
5 X 3─
─ ─
─Opposite
Opposite
-5 -5+ + -5 -15
-5 -5+ + -5
5 5 5
= =
5 5+ + 5 -15= =
- - - = 15+ +=
Ex 1)
Ex 2)
Ex 3)
Rules
Positive times Positive
Positive times Negative
Negative times Negative
Positive
Positive
Negative
+- -
9 X -3
-6 X 4
-6 X - 12
-3 X -6 X 2
= -27
= -24
= 72
= 36
Ex 4)
Ex 5)
Ex 6)
Ex 7)
-4 X -5 X -6 = -120Ex 8)
Division uses same rules15 ÷ 3
-60 ÷ 5
96 ÷ - 3
= 5
= -12
= - 32
= - 90
Ex 9)
Ex 10)
Ex 11)
Ex 12)
-2 + -12 = 2Ex 13)-7
- 7208
Essential Question
Explain how to multiply more than two integers?