CC2 Chapter 3 Review: Operations with Rational Numbers

Order of Operations

100

7 + 9(2) - 6/3

23

200

7 - 24 / 8 x 4 + 6

1

300

(17 - 6 / 2) + 4 x 3

26

400

(3 x 5² / 15) - (5 - 2²)

4

500

(22 / 2 - 2 x 5)² + (4 - 6 / 6)²

10

Multiplying Rational Numbers

100

-7 x 7

-49

200

-4 x 4 x -2

32

300

3.5 x 1.5

5.25

400

-6.1 x 3.2

-19.52

500

-3 2/5 x -4/10

1 18/50 or 68/50

Dividing Rational Numbers

100

88 / -11

-8

200

-80 / -0.8

100

300

322 / 18

17 16/18 or 17 8/9

400

4.2 / -1/4

-84/5 or -76 4/5

500

-3.6 / -1.4

360/140 or 2 80/140

Decimals

100

4.72 - (-3.2)

7.92

200

9.7 + (-5.3)

4.4

300

-4.47 + (-6.273)

-10.743

400

-8.09 + 11.25

3.16

500

Write 2/7 as a decimal to the thousandths place.

0.285