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(3/4)+(37/7)×(1/4)+(26/7)÷4 怎样简便就怎样算
人气:245 ℃ 时间:2020-05-23 07:46:28
解答
=3×1/4+37/7×1/4+26/7×1/4
=(3+37/7+26/7)×1/4
=12×1/4
=3
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