777x9 111x37怎样算才简便

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1、芦罩老777X9=777X(10-1)=7770-777=7770-(770+7)=7770-770-7=7000-7=6993
2、111X37=111X(40-3)=4440-333=4440-(400-67)=4440-400+67=4040+67=4107
3、好多诸如此类的算法，多一些步陪升骤简化计闷敬算

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777x9+111x37
=111x7x9+111x37
=111x63+111x37
=111x(63+37)
=111x100
=11100

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