Question

1) + 19 - 21 = -2 (a positive 19 combined with a negative 21 = -2)

2) - 20 _ -2 = -22

3) 29 _ -13 = 16

4) -16 _ -17 = -33

5) -19 _ 3 = -22

6) 98 _ -2 = 100

7) -112 _ -13 = -125

8) 111 _ -1 = 110

9) -72 _ 8 = -64

10) 80 _ -6 = 86

11) 99 _ -2 = 97

12) 13 _ -1 = 14

Answer 1

Use positive and negative to make the equation make sense