Adding and Subtracting Rational Numbers

Vocabulary

100

A number's distance from 0

Absolute Value

200

Whole numbers and their opposites

Integers

300

Two numbers whose sum is equal to 0

Additive Inverse

400

Numbers that are not whole (Decimals and Fractions)

Rational Numbers

Integers

100

10 + 15

25

200

2 + (-8)

-6

300

12 - 22

-10

400

-14 - ( -17)

3

Decimals

100

3.1 + 4.5

7.6

200

-2.9 + 3.0

0.1

300

- 1.4 - 1.6 

-3

400

-4.5 - (-5.6)

1.1

Fractions

100

4/5 + 3/5

1  2/5

200

-2/3 + 1/10

-17/30

300

4  1/3 + (-1/2)

-4  5/6

400

7/8 - (-1/5)

1  3/40

Terminating or Repeating

100

1/4

Terminating  0.25

200

1/3

Repeating  0. ̅3

300

4/9

Repeating  0. ̅4

400

1  5/8

Terminating  1.625