Download Multiplying and Dividing Integers

Objective: SWBAT multiply or divide
two integers and give the answer the
correct sign.
Vocabulary
Integer
are whole numbers and their opposites
Sign
a number that is either positive or negative
Positive -- +
Negative --
-
Product
means to multiply
Quotient
means to divide
Rules for Multiplying and Dividing Integers:
Multiply and/or Divide the integers without
regards to the sign, then give your answer a sign
using these rules.
Same Signs – Multiply or Divide, then make your answer
positive.
Pos. ∙ Pos. = Pos.
5∙4=
20
2∙3=
6
Pos. ÷ Pos. = Pos.
10 ÷ 5 =
2
36 ÷ 4 =
9
Neg. ∙ Neg. = Pos.
-6 ∙ -2 =
12
-3 ∙ -8 =
24
Neg. ÷ Neg. = Pos.
-12 ÷ -4 =
3
-5 ÷ -1 =
5
Different Signs – Multiply or Divide, then make your sign
negative.
Pos. ∙ Neg. = Neg.
2 ∙ -4 =
-8
8 ∙ -2 =
-16
Neg. ∙ Pos. = Neg.
-1 ∙ 4 =
-4
-2 ∙ 9 =
-18
Pos. ÷ Neg. = Neg.
15 ÷ -3 =
-5
9 ÷ -3 =
-3
Neg. ÷ Pos. = Neg.
-14 ÷ 2 =
-7
-24 ÷ 4 =
-6
Mixed Practice
1. 8 ∙ -9 =
5. 16 ÷ -2 =
-72
2. -20 ÷ -4 =
3.
-9 =
3
6. -4(2) =
5
-8
-8
7. (-4)2 =
-4 ∙ -4 =
-3
4. -5(-6) =
30
16
8. (-3)3 =
-3 ∙ -3 ∙ -3 =
-27