Pre-Algebra 9/3

Estimate

100

5,021 + 2,957

About 8,000

200

52 + 29 + 97

About 180

300

597 - 201

About 400

400

19 x 52

About 1,000

500

6,012 / 19

About 60

Multiplication/Division

100

78x = 4,368

56

200

t / 4 = 32

128

300

1.2h = 3

2.5

400

7.2 = u / 1.5

10.8

500

4.5 = 5n

0.9

Addition/Subtraction

100

r - 1,078 = 4,562

5,640

200

m = 8 = 15

7

300

5.6 + x = 7 

1.4

400

d - 2.16 = 3.9

6.06

500

Paul is 2.7 pounds heaver than Elizabeth. Paul weighs 132.4 pounds. How much does Elizabeth weigh?

129.7 lbs

Fractions

100

Write an equivalent fraction for:

5/20

1/4, 2/8, 3/12, 10/40 

200

Write an equivalent fraction for:

4/6

2/3, 10/15, 8/12, 20/30

300

Write an equivalent fraction for:

1/3

2/6, 3/9, 4/12

400

Order least to greatest:

1/2, 1/4, 1/6

1/6, 1/4, 1/2

500

Order from least to greatest:

17/40, 7/20, 5/16

5/16, 7/20, 17/40

Adding/Subtraction with Fractions

100

4/5 + 2/5

1 1/5

200

11/13 - 7/13

4/13

300

4/7 + 6/7 

1 3/7

400

1 13/15 - 2/3

1 1/5

500

3/4 - 3/8

3/8