Sprawdzenie

5 x 5 + 21 = 25 + 21 = 46

3 x 8 + 32 = 24 + 32 = 56

7 x 6 + 17 = 42 + 17 = 59

4 x 7 + 40 = 28 + 40 = 68

6 x 6 - 12 = 36 - 12 = 24

8 x 6 - 14 = 48 - 14 = 34

7 x 7 - 25 = 49 - 25 = 24

10 x 5 - 25 = 50 - 25 = 25