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3.6*0.7+64*0.07怎样用简便方法计算
人气:464 ℃ 时间:2020-04-13 11:45:00
解答
3.6*0.7+64*0.07
=3.6×0.7+6.4×0.7
=0.7×(3.6+6.4)
=0.7×10
=7
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