7th Grade Math Review (Integers, Expressions, and Equations)

Integers

100

742-375=?

367

200

200-348=?

-148

300

-83-59=?

-142

400

-49+102=?

53

500

−10(1+ 4) − 5

-55

Equations

100

Solve for x. 

2x+6=46

x=20

200

Solve for n. 

83=-3n-25

n=-36

300

Solve for a. 

5a+35=60

a=5

400

Solve for b. 

(b/3)-17=4

b=63

500

Solve for x.

2(3x-5)=20

x=5

Combining Like Terms

100

Simplify:

3x+2x+10

5x+10

200

Simplify:

13x+22-8x

5x+22

300

Simplify:

-12x+30+25x-27

13x+3

400

Simplify: 

-3.2x+5.5-2.1x

-5.3x+5.5

500

Simplify:

1/2x+1/4x+5

3/4x+5

Distributive Property

100

Simplify the expression: 

2(3x+5)

6x+10

200

Simplify the expression: 

-5(2x-3)

-10x+15

300

Simplify the expression: 

-(2x-3)

-2x+3

400

Simplify the expression:

-(x+2)

-x-2

500

Simplify the expression:

3x+2(5x-4)

3x+10x-8

13x-8