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5.32-1又7分之5-3又7分之2+2.68
人气:277 ℃ 时间:2020-05-03 08:01:33
解答
5.32-1又7分之5-3又7分之2+2.68
=5.32+2.68-12/7-23/7
=8-(12/7+23/7)
=8-35/7
=8-5
=3
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