What is 35 + 14 ?
49
The inverse of 10 - 4 = 6 is ....
4 + 6 = 10 or 6 + 4 = 10
59 - 26 = ....
33
What is the inverse of 28 + 12 = 40 ?
40 - 12 = 28 or 40 - 28 = 12
Calculate this
34
57 - 15 = .....
42
Inverse this calculation: 25 - 12 = 13
13 + 12 = 25 or 12 + 13 = 25
Inverse this 8 + 2 = 10
10 - 8 = 2 or 10 - 2 = 8
32 + 15 = ....
47
78 - 24 = .....
54
