解:314×2+2×16等于( 660 ) ∵已知需求出314×2+2×16等于多少 X × Y + X × Z = X × (Y + Z) ∴314 × 2 + 2 × 16 = 2 × (314 + 16) = 2 × 330 = 660 答:314×2+2×16等于660