[(1.8-0.6)/?+2.5]*0.4=3.4
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[(1.8-0.6)/?+2.5]*0.4=3.4[(1.8-0.6)/?+2.5]*0.4=3.4[(1.8-0.6)/?+2.5]*0.4=3.4[(1.8-0.6)/?+2.5]×0.4=3.4
[(1.8-0.6)/?+2.5]*0.4=3.4
[(1.8-0.6)/?+2.5]*0.4=3.4
[(1.8-0.6)/?+2.5]*0.4=3.4
[(1.8-0.6)/?+2.5]×0.4=3.4
1.2÷?+2.5=3.4÷0.4
1.2÷?+2.5=8.5
1.2÷?=8.5-2.5
1.2÷?=6
=1.2÷6=0.2
[(1.8-0.6)/?+2.5]*0.4=3.4
2.5*0.6-1.8*0.5怎么样简算
2.5乘0.6减18乘0.
【（1.8-0.6）除以( )加上2.5】乘以0.4=3.4
[(1.8-0.6)/?+2.5]*0.4=3.4 (不用方程做）
1.8×1.1 2.4×2.5 1.9×0.6 0.18×1.1
[(1.8-0.6)/( )+2.5]x0.4=3.4括号里的数是多少
2.5乘以0.6减去1.8乘以0.5用简便方法怎么做
1.8与2.5的积加上0.6除33.6的商,和是多少?
(2.5-2.5*0.6)/0.4
1.8除以0.
0.6:1.8的比值
求助;一道小数点的简便计算~2.5×0.6－1.8×0.5我是想问整个计算过程
0.6x-0.6*3.5=1.8
(1.8+x)/3=0.
1.8÷0.15-0.5×0.
1.8/x=7.2/0.
1.8比0.6求比值