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问题:

【脱式计算(能简便就简便)6.25÷1%-1.25×25×85/3×81+60%×194/3×4÷4×4/313/7+12.5%×13/65/4×3.5+5.5×80%+0.8(27+19/18)÷981/5×3.6÷1又6/1】

更新时间:2024-04-28 10:32:35

问题描述:

脱式计算(能简便就简便)

6.25÷1%-1.25×25×85/3×81+60%×194/3×4÷4×4/313/7+12.5%×13/65/4×3.5+5.5×80%+0.8

(27+19/18)÷981/5×3.6÷1又6/1

李志舜回答:

  6.25÷1%-1.25×25×8   =625-(1.25×8)×25   =625-10×25   =625-250   =375   3/5×81+60%×19   =0.6×(81+19)   =0.6×100   =60   4/3×4÷4×4/3   =4/3×4/3×(4÷4)   =4/3×4/3   =16/9   13/7×12.5%+12.5%×13/6   =(13/7+13/6)×12.5%   =1×12.5%   =0.125   5/4×3.5+5.5×80%+0.8   =0.8×(3.5+5.5+1)   =0.8×10   =8   (27+19/18)÷9   =27÷9+19/18÷9   =3+19/2   =3又19/2   81/5×3.6÷1又6/1   =9/2÷7/6   =9/2×6/7   =27/7

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