(1.9-1.9*0.9)/(3.8-2.8)简便运算
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(1.9-1.9*0.9)/(3.8-2.8)简便运算
(1.9-1.9*0.9)/(3.8-2.8)简便运算
(1.9-1.9*0.9)/(3.8-2.8)简便运算
(1.9-1.9*0.9)/(3.8-2.8)
=1.9*(1-0.9)/1
=1.9*0.1
=0.19
(1.9-1.9×0.9)÷(3.8-2.8)等于?
(1.9-1.9*0.9)/(3.8-2.8)简便运算
(1.9-1.9*0.9)/(3.8-2.8)的简便算法
(1.9-1.9*0.9)/(3.8-2.8)能简便的简便
简算:1.9+(12.8-3.8)*1.9
(1.9-1.9*0.9)/(17.6-16.6)
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(3.8+3.4*3.8+3.8*5.6)/(1.9*0.8*0.25)
(能简算的要简算)(1.9-1.9*0.9)*100
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(1.9减1.9乘0.9)除100怎么简算