7th Grade Math Review

The Distributive Property

100

2(2 + 3x) =

6x + 4

200

-2(6x - 2)

-12x + 4

300

-(-2 - 5x)

2 + 10x

400

11(3x - 12)=

33x - 132

500

(3 - 6x)(-7)

42x - 21

Evaluate Expressions

100

5 + x, x = 2

7

200

3x + 7, x =6

25

300

10 - 3x, x = 8 

-14

400

2(-7x - 2), x = 3

-46

500

4x - 12 + 8x, x = -6

-84

Rounding

100

Round to nearest whole number. 

23.18

23

200

Round to nearest tenth.

47.847

47.8

300

Round to nearest tenth.

82.88

82.9

400

Round to nearest hundredth.

26.1855

26.19

500

Round to nearest thousandth.

46.54765

46.548

Integers/Absolute Value

100

|-7|

7

200

|8|

8

300

|-14|

14

400

-14 + 8 = 

-6

500

-25 - 61 =

-86

Multiply/Divide Decimals

100

0.5 x 0.4 =

0.2

200

12.5 x 4.2 =

52.5

300

33.2 x 2.2 =

73.04

400

4.2 / 2 =

2.1

500

25.6 / 0.4 = 

64