7.4*5.6+7.4+5.4-74*0.1
=7.4*5.6+7.4+5.4-7.4*1
=7.4*(5.6+5.4-1)
=7.4*10
=74
7.4*5.6+7.4+5.4-74*0.1(简算)
7.4*5.6+7.4+5.4-74*0.1(简算)
数学人气:469 ℃时间:2020-03-31 11:17:21
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