Math 7 Review

Fractions/decimals

100

47.625 x __________ = 47,625,000

10⁶ or 1,000,000

200

Convert 9 2/5 into a decimal

9.4

300

Which is greater, 5/7 or 8/11?  Prove your answer in writing to show the comparison

8/11 is greater

400

What is 6 3/7 as a decimal?

6.428

500

Rewrite the following in order from least to greatest

7/9, 0.7, 4/5, 0.79, 3/4

0.7, 3/4, 7/9, 0.79, 4/5

Integers

100

-108÷12x(-8)

72

200

-34 - (-17)

-17

300

34 - (-17)

51

400

-34 - 17 + 12

-39

500

A glacier sits below the water at a depth of 2,893 feet and above the water at 756 feet.  What is the height of the glacier?

3,649 feet

PEMDAS

100

700 - 623.26 + 5³

201.74

200

-57 - 6(7) + 4²

-83

300

15 2/3 + 10 4/12 - 3³

9

400

56÷7x5 - 27.3 + √36

18.7

500

-63÷7 + (-28) - (-3) - 56÷(-8)

-27

Expressions

100

Simplify -3m + 4y + 7m - 18

4m + 4y -18

200

Simplify 7r - 16 - 20p - 13r + 15p - 12

a) 7r - 13r = -6r

b) -16 - 12 = -28

c) -20p + 15p = -5p

Answer: -6r - 28 - 5p

300

If r = 1/3, m = -7 and p = 4, evaluate

-18r + mp

-34

400

Simplify -3/4(16m - 36) + 2/7(28m - 42)

Distribute the fractions:

-12m + 27 + 8m - 12

Simplify:   -4m + 15

500

(-8c + 16) - (-3c - 12)

-5c + 28

Mixed Bag

100

What is the GCF of 63, 84 and 56?

7

200

√64 divided by √4

4

300

4567 x 1/1000

4.567

400

What is 3/7 of 42?

18

500

What is 28.728 divided by 3.8?

7.56