
解:12531×11等于( 137841 ) ∵已知需求出12531×11等于多少 A × (B + C)= A × B + A × C ∴12531 × 11 = 12531 × (10 + 1) = 12531 × 10 + 12531 × 1 = 125310 + 12531 = 137841 答:12531×11等于137841

解:12531×11等于( 137841 ) ∵已知需求出12531×11等于多少 A × (B + C)= A × B + A × C ∴12531 × 11 = 12531 × (10 + 1) = 12531 × 10 + 12531 × 1 = 125310 + 12531 = 137841 答:12531×11等于137841