0.2*0.07+0.4*0.6+0.5*0.9+0.18+0.3=1
0.2*0.07+0.4*0.6+0.5*0.9+0.18+0.3=1添括号
0.2乘0.07加0.4乘0.6加0.5乘0.9加0.18加0.3等于1
把等号左边的数调整位置,使等号两边相等 0.2*0.07+0.4*0.6+0.5*0.9+0.18+0.3=1
0.2乘0.07加0.4乘0.6加0.5乘0.9加0.18加0.3等于1,把等号左边的数调换位置,
在横线上填上运算符号!0.2_0.07_0.4_0.6_0.5_0.9_0.18_0.3=1
2乘0.07加0.4乘0.6加0.5乘0.9加0.18加0.3等于1,把等号左边的数调换位置,
-0.4x+0.9/0.5=0.2x+0.3/0.3+1d等于几
填运算符号(+,-) 0.1( )0.2( )0.3( )0.4( )0.5( )0.6=1
(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*
化成最简分数 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.15 0.25 0.35 0.
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