Răspuns :
8 × 4 - 18 =
32 - 18 = 14
9 × 6 - 18 =
54 - 18 = 36
5 × 8 - 18 =
40 - 18 = 22
9 × 10 - 18 =
90 - 18 = 72
32 - 18 = 14
9 × 6 - 18 =
54 - 18 = 36
5 × 8 - 18 =
40 - 18 = 22
9 × 10 - 18 =
90 - 18 = 72
8×4=32
32-18=14
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9×6=54
54-18=36
______________
5×8=40
40-18=22
_______________
9×10=90
90-18=72