Rational Numbers Review

Add Rational Numbers

100

-12.4 + 8.39

-4.01

200

-2/3 + 3/4

1/12

300

-3 1/3 + 2 1/2

-5/6

400

-15.078 + (-2.37)

-17.448

500

-5 2/3 + 1 3/4

-3 11/12

Subtracting Rational Numbers

100

4.59 - 12.827

-8.237

200

-1 1/2 - 2/3

-2 1/6

300

-25.3 - (-13.08)

-12.22

400

Subtract these rational numbers.

-23.01 - 8.2

-31.21

500

Subtract these rational numbers.

-5/6-(-4/5)

-1/30

Multiplying Rational Numbers

100

Multiply rational numbers 

(Simplify any FRACTION answers)

0.47 * 5.6

2.632

200

2/3 * (-5/8)

-5/12

300

Multiply rational numbers (Simplify any FRACTION answers)

-5 2/3*(-1 1/2)

8 1/2

400

3.2 * (-1.575)

-5.04

500

2.3*(-1.4)*1.1

-3.542

Dividing Rational Numbers

100

-1/2 ÷ 3

-1/6

200

-12 / (2.5)

-4.8

300

-5.941 / 1.3

-4.57

400

-9 9/10 ÷ (-2 3/4)

3 3/5

500

(5  1/5) / (-2  1/10)

-2  10/21

Misc Rational

100

What is the additive inverse of -12?

12

200

Give an example of a zero pair.

3 and -3

{any positive integer paired with its opposite}

300

Add these rational numbers. (Simplify any FRACTION answers)

12 2/5 + (-5 1/3)

7 1/15

400

Divide rational numbers (Simplify any FRACTION answers)

30 ÷ (-4)

-7.5

500

Evaluate each expression using the order of operations. 

2/5+3/7-5 2/3÷1/3

-16 6/35