Рассчитайте примеры:

5 - 6 = -1

8 - 5 = 3

5 - 4 = 1

5 - 9 + 5 = 1

7 - 5 + 6 = 8

3 - 5 + 8 = 6

4 * 8 - 30 = 32 - 30 = 2

9 * 3 - 12 = 27 - 12 = 15

9 * 4 + 5 = 36 + 5 = 41

25 : 5 + 10 = 5 + 10 = 15

24 : 3 + 17 = 8 + 17 = 25

18 : 3 + 24 = 6 + 24 = 30