(2012•临川区)(1)9.81×0.1+0.5×98.1-查字典问答网
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  (2012•临川区)(1)9.81×0.1+0.5×98.1+0.049×981(2)15×(215-217)×17(3)100-32×0.125×0.25(4)[1-(12-14)]×23.

  (2012•临川区)(1)9.81×0.1+0.5×98.1+0.049×981

  (2)15×(215-217)×17

  (3)100-32×0.125×0.25

  (4)[1-(12-14)]×23.

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2020-05-0910:16
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宋永华

  (1)9.81×0.1+0.5×98.1+0.049×981 =9.81×0.1+5×9.81+4.9×9.81 =9.81×(0.1+5+4.9)=9.81×10=98.1;(2)...

2020-05-09 10:19:47
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