小学四年级上学期数学128×43×8的简便计算方法
人气:160 ℃ 时间:2019-10-19 13:05:38
解答
128x43x8
=(125+3)x43x8
=[(125x8)+(3x8)]x43
=[1000+24]x43
=1000x43+24x43
=43000+1032
=44032
我对了,不信就用计算器.我六年级.
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