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计算:4.73-【2又3分2-(-2.63)】-1/3
人气:437 ℃ 时间:2020-05-13 18:08:29
解答
4.73-【2又3分2-(-2.63)】-1/3
=4.73-(8/3+2.63)-1/3
=4.73-8/3-2.63-1/3
=(4.73-2.63)+(-8/3-1/3)
=2.1-3
=-0.9
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