
怎么用简便方法计算?
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111x33.6+1.2x333
=111x(33.6+1.2x3)
=111x37.2
=100x37.2+10x37.2+1x37.2
=3720+372+37.2
=4092+37.2
=4129.2
=111x(33.6+1.2x3)
=111x37.2
=100x37.2+10x37.2+1x37.2
=3720+372+37.2
=4092+37.2
=4129.2
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