3.6×102-3.6×0.2简便算法怎么算6.8×10.1?
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3.6×102-3.6×0.2
=3.6x(100+2)-3.6×0.2
=3.6x100+3.6x2-3.6×0.2
=360+7.2-0.72
=360+6.48
=366.48
6.8x10.1=6.8x(10+0.1)=68+0.68=68.68
=3.6x(100+2)-3.6×0.2
=3.6x100+3.6x2-3.6×0.2
=360+7.2-0.72
=360+6.48
=366.48
6.8x10.1=6.8x(10+0.1)=68+0.68=68.68
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