Question

1.
9 (9) 2
2 (16) 4
2 (x) 5
2.
6 3 (2) 20
5 2 (10) 20
4 3 (x) 22

Answer 1

63 (2) 20
52 (10) 20
43 (x) 22

20-(6x3)
20-18
2

20-(5x2)
20-10
10

22-(4x3)
22-12
10