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 42:6 (42/6)?

7:1 or 7/1 or 7 to 1

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 15 toys in 5 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 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 n. (n/3)-17=4

n=63

500

3.3h − 3 = 15 −1.2h

h=4

Circles

100

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

56 cm

200

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

144pi square inches

300

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

32pi cm

400

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

49pi square feet

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. Use 3.14 for pi.

The area of the circle is 113.04 square feet.