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3/4+37/7×1/4+7/26÷4
人气:295 ℃ 时间:2020-07-03 01:50:04
解答
3/4+37/7×1/4+26/7÷4
=3×1/4+37/7×1/4+26/7×1/4
=(3+37/7+26/7)×1/4
=(3+9)×1/4
=12×1/4
=3
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