34.7÷1.25怎样用简便方法来计算
2个回答
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34.7/1.25
=347/10*100/125
=347*10/125
=3470/125
=[3470*8/8]/125
=3470*8/[8*125]
=3470*8/[2*2*2*125]
=3470*8/[2*2*250]
=3470*8/[2*500]
=3470*8/1000
=347*8/100
=347*[10-2]/100
=347*10/100-347*2/100
=34.7-6.94
=34-6+0.7-0.94
=28+1-1+0.7-0.94
=28+1-0.94-1+0.7
=28+0.06-0.3
=28+[6-30]/100
=28+[-24]/100
=28-0.24
=27.76
=347/10*100/125
=347*10/125
=3470/125
=[3470*8/8]/125
=3470*8/[8*125]
=3470*8/[2*2*2*125]
=3470*8/[2*2*250]
=3470*8/[2*500]
=3470*8/1000
=347*8/100
=347*[10-2]/100
=347*10/100-347*2/100
=34.7-6.94
=34-6+0.7-0.94
=28+1-1+0.7-0.94
=28+1-0.94-1+0.7
=28+0.06-0.3
=28+[6-30]/100
=28+[-24]/100
=28-0.24
=27.76
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