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76x11用乘法分配律计算题

方法有两种 (1)104×11 =104×(10+1) =1040+104 =1144 (2)104x11 =(100+4)×11 =100×11+4×11 =1100+44 =1144,

1024x625x1331=64x(16x625)x11x11x11 =64x10000x11x11x11=704x11x11x10000 =7744x11x10000 =85184x10000 =851840000 (一个数与11相乘如:7744x11=7744x(10+1)=77440+7744=85184)

236*11-256=236*(10+1)-256=2360+236-256=2340 或者=236*11-236-20=236*(11-1)-20=2360-20=2340

(60-2)×11 =60×11-2×11 =660-22 =638

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