найди произведение по таблице умножения,затем закончи вычисления

3 * 5 + 18 = 15 + 18 = 33

6 * 7 + 29 = 42 + 29 = 71

2 * 7 + 3 * 6 = 14 + 18 = 32

7 * 8 - 6 * 6 = 56 - 36 = 20

1 * 2 + 2 * 3 + 3 * 4 = 2 + 6 + 12 = 20

2 * 5 - 3 * 3 + 4 * 6 = 10 - 9 + 24 = 1 + 24 = 25

8 * 4 - 12 = 32 - 12 = 20

9 * 2 - 17 = 18 - 17 = 1

9 * 1 + 9 * 9 = 9 + 81 = 90

7 * 7 - 5 * 9 = 49 - 45 = 4

1 * 4 + 4 * 5 - 4 * 3 = 4 + 20 - 12 = 24 - 12 = 12

7 * 1 + 1 * 1 - 2 * 4 = 7 + 1 - 8 = 8 - 8 = 0