7th Grade Math Review

Integers

100

742-375=?

367

200

-460 - 378=?

-838

300

-113+ (-59)=?

-172

400

-49+102=?

53

500

−10(1+ 4) /16 − 5=

-8.125

Percents

100

Eight is 12% of what number?

66.6, 66.7, 67

200

Amanda got a 24/30 on her test. What is her percent score?

80%

300

What is 34% of 60?

20 or 20.4

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 4 hours. How many toys can they produce in 36 hours?

81 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

Write the equation : 4 times the sum of a number "x" and "3", equaling, 4x+12???

4(x+3) = 4x+12

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

(5² - 10) / 5 x 2³

24

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?

144pi in.

300

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

Formula: C = 2 x Pi x r

32pi cm

400

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

Formula: d= 2r

49pi ft

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