a × b × c = 96
a = 4
b = 4 : 2 = 2
4 × 2 × c = 96
8 × c = 96
c = 96 : 8
c = 12
al 3 lea nr este 12.
verificare : 4 × 2 × 12 = 96 ( produsul ) ☆
____________________________
69 : 3 × 4 - 35 × 2 =
23 × 4 - 70 =
92 - 70 = 22
72 : 2 - 54 : 3 =
36 - 18 = 18
95 : 5 × 2 - 38 : 2 =
19 × 2 - 19 =
38 - 19 = 19