Ch. 2 Expressions Review

Reciprocals and Division

100

Simplify:

12x/6

2x

200

What is the reciprocal of -7?

-1/7

300

What is the reciprocal of 5/7?

7/5

400

Simplify:

(1/5)(25x + 5)

5x + 1

500

5 divided by -1/4

-20

Multiplication

100

Simplify:

7(8x)

56x

200

Simplify:

5(2) + 12(2)

34

300

Simplify:

-4(-3 + x)

12 - 4x

400

Simplify:

5(2x + y - 7)

10x + 5y - 35

500

Simplify:

2(3x - y) - (2x - 4y) + 1

4x + 2y + 1

Addition and Subtraction

100

Simplify:

4 + 3 - 7

0

200

Simplify:

2x + 7 - x + 1

x + 8

300

Simplify:

x + 12 - x

12

400

Simplify:

3x - 5 - (-7) + x

4x + 2

500

12 + x + y + 7

x + y + 19

Absolute Value

100

Simplify:

|-8|

8

200

Simplify:

 -|-2|

-2

300

Simplify:

3 - |-2|

1

400

Simplify:

|-4x| - 2x + 1 

2x + 1

500

Solve for x:

|x| = 1

1, -1

Order of Operations

100

Simplify:

7 - 2 x 3 + 1

2

200

Simplify:

(9 - 2) x 3 + 1

22

300

Simplify:

3 + [(-7) + 10]

10

400

3(3)(2) - (2)(6) + 7

13

500

4(2 + 3) - 5 - (6 x 2)

3