1.
21 + 16 = (20 + 10) + (1 + 6) = 30 + 7 = 37
2.
6 + 9 = 5 + (1 + 9) = 5 + 10 = 15
3.
7 + 9 = 6 + (1 + 9) = 6 + 10 = 16
4.
23 + 32 = (20 + 30) + (3 + 2) = 50 + 5 = 55
5.
5 + 9 = 4 + (1 + 9) = 4 + 10 = 14
6.
52 + 14 = (50 + 10) + (2 + 4) = 60 + 6 = 66
1.
21 + 16 = (20 + 10) + (1 + 6) = 30 + 7 = 37
2.
6 + 9 = 5 + (1 + 9) = 5 + 10 = 15
3.
7 + 9 = 6 + (1 + 9) = 6 + 10 = 16
4.
23 + 32 = (20 + 30) + (3 + 2) = 50 + 5 = 55
5.
5 + 9 = 4 + (1 + 9) = 4 + 10 = 14
6.
52 + 14 = (50 + 10) + (2 + 4) = 60 + 6 = 66