1.7-1.7×0.2简便计算怎么做,
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1.7-1.7×0.2简便计算怎么做,
1.7-1.7×0.2简便计算怎么做,
1.7-1.7×0.2简便计算怎么做,
1.7-1.7×0.2
=(1-0.2)×1.7
=0.8×1.7
=1.36
1.7*(1-0.2)
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