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

Ratios

100

Skyzone sells tickets for their jump area. You buy a ticket for 4 hours and it costs $24. How much are you paying per hour to jump?

$6

200

What is the unit rate of the ratio 6:42 (6/42)?

1:7 or 1/7

300

Blake is able to get 27 miles on 1 tank of gas. How many miles can Blake travel on 6 tanks of gas?

162 miles

400

A toy company can produce 9 toys in 3 hours. How many toys can they produce in 24 hours?

72 toys

500

You paid $28.00 for 8 gallons of gasoline. How much would you pay for 15 gallons of gasoline?

You would pay $52.50

Equations

100

Solve for z.

2z + 6 = 46

z = 20

200

Solve for n.

83 = -3n - 25

n=-36

300

Solve for y.

5y + 35 = 60

y = 5

400

Solve for m.

(m/3) - 12 = -4

m = 24

500

Solve for x.

3x − 5 = 15 − 2x

x=4

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?

A = (pi)r²

pi = 3.14

452.16 in²

300

The radius of a circle is 16cm. What is the circle's circumference?

C = 2(pi)r

pi = 3.14

100.48 cm

400

The diameter of a circle is 14ft. What is the circle's area?

A = (pi)r²

pi = 3.14

153.86 ft²

500

The circumference of the circle at the center of a basketball court is 37.68 feet. Find the area of the circle at center court.

C = 2(pi)r

A = (pi)r²

pi = 3.14

The area of the circle is 113.04 ft².