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45÷0.125+55×8这道题怎么简便运算
人气:273 ℃ 时间:2020-02-05 21:50:34
解答
45÷0.125+55×8
=45÷ 1/8+55×8
=45×8+55×8
=(45+55)×8
=100×8
=800
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