7th Grade Summative #5 Review

Integers

100

6 - (-8)

14

200

-17 -  (-19)

2

300

-178 + 24

-154

400

Solve for x 

5x = -145

-29

500

Solve for x

-17 + b = -5

12

Adding Rational Numbers

100

-(7/8) + (1/4)

-(5/8)

200

-(5/2) + 4(1/2)

-(1/2)

300

1.3 + -1.5

-0.2

400

-2 1/2 + 0.8

-1.3 or -1 3/10

500

-5 (3/4) + -4(5/6)

-10(7/12)

Subtracting Rational Numbers

100

0.2-0.7

-0.5

200

-2.35- -1.27

-1.08

300

-4 - - 7(1/3)

3(1/3)

400

2.37 - -1.55 - 2.48

1.44

500

-3.24 - - 6(1/2)

3 (1/4) or 3.25

Multiplying Rational Numbers

100

-4(9/16)

-2 (1/4)

200

-1.39 x -6.8

9.452

300

-6.3 x 3/5

-3.78 or -3 39/50

400

(-8/9)(-18/25)

16/25

500

-3 (3/7) x -2(1/2)

8(4/7)

Dividing Rational Numbers

100

-(2/3) / (5/9)

-1 (1/5)

200

-(7/13) / -2

-7/26

300

-5(5/8) / -4(7/12)

1(5/22)

400

-10 / .22

-45.45 (repeating)

500

-12.166 / -1.54

7.9