Odpowiedź:
zad 1
5 + 9 - 6 = 14 - 6 = 8
15 - 8 + 7 = 7 + 7 = 14
20 - 6 - 7 = 14 - 7 = 7
2 * 16 : 18 = 32 : 18 = 32/18 = 1 14/18 = 1 7/9
45 : 5 * 3 = 9 * 3 = 27
72 : 8 : 3 = 9 : 3 = 3
zad 2
14 - ( 3 + 6) = 14 - 9 = 5
27 - (15 - 7) = 27 - 8 = 19
47 - (2 + 13) = 47 - 15 = 32
60 : ( 6 : 3) = 60 : 3 = 20
54 : ( 3 * 3) = 54 : 9 = 6
7 * ( 12 : 3) = 7 * 4 = 28
zad 3
(7 + 5) * 5 = 12 * 5 = 60
25 : ( 7 - 2) = 25 : 5 = 5
(14 + 28) : 6 = 42 : 6 = 7
(42 - 6) : 9 = 36 : 9 = 4