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0.63+0.37÷ (2+3/2+1+9/4)
人气:368 ℃ 时间:2020-05-16 09:02:02
解答
0.6848
0.63+0.37÷ (2+3/2+1+9/4)
=0.63+0.37/(2+1.5+1+2.25)
=0.63+0.37/6.75
=0.63+0.0548
=0.6848
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