7th Grade Math Review

Integers

100

742-375=?

367

200

200-348=?

-148

300

-83-59=?

-142

400

-49+102=?

53

500

−10(1+ 4) − 5

-55

Percents

100

Eight is 5% of what number?

160

200

Amanda got a 21/28 on her test. What is her percent score?

75%

300

What is 25% of 60?

15

400

A restaurant bill comes to $34.60. You decide to leave an 15% tip. What is the total cost of the bill?

$39.79

500

Kim bought a hat in California. The hat cost $15 before the 8% sales tax was applied. How much did Kim pay for the hat after taxes were added?

Kim paid $16.20

Combine Like Terms

100

Simplify the expression:

3a + 4a

7a

200

Simplify the expression

-12b + 6b - 4b

-10b

300

Simplify the expression

-4(x + 2) + 8x

4x - 8

400

Simplify the expression:

5a - 6a + 7b + 3a - 4b

2a + 3b

500

Simplify the expression: 

4(-5x + 4) + 2x - 3

-18x + 13

Equations

100

Solve for n. 

2n + 6 = 46

n = 20

200

Solve for n. 

83 = -3n - 25

n=-36

300

Solve for n. 

5n+35=60

n=5

400

Solve for x. 

4(x+2) + 6 = 26

x=3

500

-5 (x + 9) = 5

x = 10

Circles

100

The radius of a circle is 28cm. What is the circle's diameter?

56cm

200

The radius of a circle is 12in. What is the area of the circle?

452.16in squared.

300

The radius of a circle is 3cm. What is the circle's diameter?

18.84 cm. 

400

The circumference of a circle is 25.12ft. What is the circle's diameter?

8 ft. 

500

The area of a circle is 28.26cm squared. What is the radius? 

The radius is 3cm.