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43.98乘37减439.8乘6.9加4398乘0.32巧算
人气:244 ℃ 时间:2020-04-29 17:15:41
解答
43.98乘37减439.8乘6.9加4398乘0.32巧算
=43.98乘37减43.98乘69加43.98乘32
=43.98×(37-69+32)
=0
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