(0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.9)除以(0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2)
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(0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.9)除以(0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2)
(0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.9)除以(0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2)
巧算:0.1+0.2+0.3+0.4+0.5+0.6+0.7+0.8+0.9
简算:0.1×0.2×0.4×+0.2×0.4×0.8+0.3×0.6×1.2分之0.1×0.3×0.9×+0.2×0.6×1.8+0.3×0.9×2.7=
0.1×0.2×0.4+0.2×0.4×0.8+0.3×0.6×1.2)分之(0.1×0.3×0.9+0.2×0.6×0.8+0.3×0.9×2.7)
0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2分之0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.7的解法并说出为什么这样写
(0.1×0.2×0.4+0.2×0.4×0.8+0.3×0.6×1.2)分之(0.1×0.3×0.9+0.2×0.6×0.8+0.3×0.9×2.7)=
找规律填数0.3、0.1、0.6、0.2、0.9、0.3、1.2、()、()、()
0.1×0.2×0.3×0.4×0.5×0.6×0.7×0.8×0.9怎么巧算
0.1*0.2*0.3*0.4*0.5*0.6*0.7*0.8*0.9用简便的方法怎么做
简便计算0.1+0.2十0.3+0.4十0.5+0.6+0.7+0.8+0.9的值
0.1+0.2+0.3+0.4+0.5+0.6+0.7+0.8+0.9=?用运算定律
简算.0.1+0.2+0.3+.+0.8+0.9+1
0.1+0.2+0.3+0.4+.+0.9=( )
0.1 、0.2、0.3、0.4、0.5、0.6、0.7、0.8、0.9、0这几个数是积大还是和大?大多少?
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9这九个小数中横竖斜想家都等于1.
(0.1x+0.4)/0.2-(0.2x-0.6)/0.3=1
(+0.2)+(-0.2)+(+0.7)+(-0.3)+(-0.4)+(+0.6)+0+(-0.1)+(-0.6)+(+0.5)+(-0.2)+(-0.5)=?(+0.2)+(-0.2)+(+0.7)+(-0.3)+(-0.4)+(+0.6)+0+(-0.1)+(-0.6)+(+0.5)+(-0.2)+(-0.5)=?