Add and Subtracting Positive and Negative Numbers

9 + -6.73

• 2.27

• -2.27

• 15.73

• -15.73

4.3 + (-3.6)

• 7.9

• 0.7

• -0.7

• -7.9

-2.8 + (-3.7)

• 6.5

• 0.9

• -0.9

• -6.5

(-2 ⅚) + 3 ⅔

• 1 ¹/₂

• -1 ¹/₂

• 6 ½

• -6 ½

-16 + 5

• -11

• 11

• 21

• -21

-16 + 9

-12 + -9 = ​ (a)   ( ​ (b)   + ​ ​ (c)   )​

• 12

• 2

• -9

• -12

• 9

16 + (-16)

• -32

• 0

• 32

• -1

Solve

• 6

• -6

• 3 and 1/2

• -3 and 1/2

- 5.62 + (- 12.9)

• -6.91

• - 18.52

• 6.28

• 6.91