Question

Solve the following
1 by 5 + 2 by 7
2 by 9 + 1 by 9
4 by 5 - 3 by 2
2 by 7 - 1 by 5
3 and 1 by 4 + 2 and 1 by 3

Answer 1

Answer:

1. 19

2. 27

3. 14

4. 9

5. 12