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数学
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计算下面各题,能简算的要简算.16 + 47 +56 +37 400÷25÷8 13 ÷[(1112 -56 )×45 ] (100+2)×2.5
人气:317 ℃ 时间:2020-05-15 14:11:00
解答
16+47+56+37
16分6出来,6分成3+3分别加到47和37上,得10+50+56+40=156
400/25/8=400/(25*8)=400/200=2
13/(1112-56)*45这个真不知道
(100+2)*2.5=51*5=255
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