Răspuns :
24 × 156 + 31 × 24 - 24 × 87 = 2 400
→ dau factor comun pe 24:
= 24 × ( 156 + 31 - 87 ) =
= 24 × ( 187 - 87 ) =
= 24 × 100 =
= 2 400
24 × 156 + 31 × 24 - 24 × 87 = 2 400
→ dau factor comun pe 24:
= 24 × ( 156 + 31 - 87 ) =
= 24 × ( 187 - 87 ) =
= 24 × 100 =
= 2 400