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999乘8加111乘28简便计算

解:999乘8加111乘28 =999X8+111X28 =111X72+111X28 =111X(72+28) =111X100 =11100

999*8+111*28=1000*8-8+100*28+10*28+28=8000+2800+280+20=10800+300=11100

999*8+111*28 =111*8*9+111*28 =111*72+111*28 =111*(72+28) =111*100 =11100

999*8+111*28=111x(9x8+28)=111x100=11100

11100.111乘28等于3108.999乘8等于7992,加起来等于11100.

999乘以8+111乘以28=111*72+111*28=111*(72+28)=111*100=11100

原式=999x8+111x28=111x9x8+111x28=111x72+111x28=111x(72+28)=111x100=11100 供参考.

999*8+111*28=111x72+111x28=111x(72+28)=111x100=11100 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!!朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问.谢谢.

999*8+111*28简便方法计算 999*8+111*28 =111*9*8+111*28 =111*72+111*28 =111*100 =11100

999*8+111*28=999x8+111x8+111x20=(999+111)x8+111x20=1000x8+2220=8000+2220=10220

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