Răspuns :
9 × 8 + 9 × 9 =
= 72 + 9 × 9
= 72 + 81
= 153
9 × 2 + 4 × 8 + 65 =
= 18 + 4 × 8 + 65
= 18 + 32 + 65
= 50 + 65
= 115
= 72 + 9 × 9
= 72 + 81
= 153
9 × 2 + 4 × 8 + 65 =
= 18 + 4 × 8 + 65
= 18 + 32 + 65
= 50 + 65
= 115