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 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=0.25

Expressions

100

Why can’t an expression be solved?

Because there is no equal sign.

200

Simplify the following: 2(x + 3) + 3x

5x + 6

300

Simplify the following: (3x - 7) - (4x - 3)

-x - 4

400

Simplify the following: -3(-4x - 3) - 2x + 6

10x + 15

500

Factor the following expression: 24x - 32y + 16

8(3x - 4y + 2)