Adding and Subtracting Negative Numbers

AddingNegative Integers

100

3 + (-8) =

-5

200

-5 + 17 =

12

300

-32 + -13 =

-45

400

54 + (-32) =

22

500

-67 + 49 =

-18

600

-146 + (-45) =

-191

SubtractingNegative Integers

100

-5 - 7 =

-12

200

14 - (-7) =

21

300

-12 - (-16) =

4

400

-27 - 13 =

-40

500

53 - (-22) =

75

600

-132 - (-57) =

-75

AddingNegative Decimals

100

4.5 + (-3.2) =

1.3

200

-5.5 + 3.2 =

-2.3

300

-7.2 + (-5.9) =

-13.1

400

4.57 + (-10.72) =

-6.15

500

-16.84 + 15.26 =

1.58

600

-37.26 + (-24.41) =

-61.67

SubtractingNegative Decimals

100

4.3 - (-3.2)

7.5

200

-4.3 - 7.4 =

-11.7

300

-3.5 - (-5.6) =

2.1

400

15.72 - (-13.51) =

29.23

500

-21.44 - 15.72 =

-37.16

600

-37.52 - (-52.33) =

14.81

AddingNegative Fractions

100

3/4 + (-1/4) =

2/4 or 1/2

200

-3/8 + 5/8 =

2/8 or 1/4

300

-1/2 + -1/4 =

-3/4

400

7/8 + (-1/2) =

3/8

500

-2 1/2 + 1 3/4 =

-3/4

600

-5 5/8 + (-3 3/4) =

-9 3/8

SubtractingNegative Fractions

100

3/16 - (-9/16)

12/16 or 3/4

200

-5/7 - 3/7 =

-8/7 or -1 1/7

300

-5/8 - (-3/4)

1/8

400

2/9 - (-2/3) =

8/9

500

-3 1/2 + 2 1/3 =

-1 1/6

600

-5 3/10 - (-6 2/5) =

1 1/10