7th Grade Review

Multiplying Integers

100

(−4)(5)

-20

200

(−7)(−3)

21

300

8(−6)

-48

400

(−12)(−5)

60

500

(−15)(4)

-60

Dividing Integers

100

−20÷5

-4

200

36÷(−6)

-6

300

(−48)÷(−8)

6

400

72÷(−9)

-8

500

(−144)÷12

-12

Find the Mean

100

4, 6, 8, 10

7

200

12, 15, 9, 4

10

300

-4, 2, 6, 8

3

400

-8, -4, 2, 6

-1

500

-15, -10, 5, 20 

0

Substitution

100

 x = 4, y = 8, z = 12 

x+y+z/3

8

200

x = -4, y = 6, z = 10

x+y+z/3

4

300

 x = -4, y = 6, z = 10 

x+y+z/3

-2

400

x = 12, y = -6, z = 3 

x+y+z/3

3

500

x = -15, y = 9, z = 12 

x+y+z/3

2

Find the Missing Number

100

__×5=−25

-5

200

−6×__=42

-7

300

__÷(−4)=8

-32

400

−72÷__=9

-8

500

__×(−6)=−54

9