12 x (45 + 30) = _______ .
12 x 65
(12 x 45) + (12 x 30)
(12 x 45) x (12 x 30)
12 x 45 x 30
According to distributive law of multiplication over addition, we have:
12 x (45 + 30) = (12 x 45) + (12 x 30)