54*(3.94+6.86) (3.2+0.12)*0.8 0.175*0.25×4 0.175*0.25*0.4
脱式计算.96÷(15.4-12.2) 9÷[0.3×(8-6.5)] 0.175÷0.25÷0.4 0.175÷0.2
54除以(3.94+6.86)乘以0.8=?(简算)
【3.94+0.86】*0.8 0.7*【3.2-2.99/2.3】 0.37*2.6+7.4*0.37 0.25*6.
用脱式计算.54/(3.94+6.86)
0.8×0.25×0.4×12.5
0.8×0.25×0.4×12.5简便计算
0.8*0.25*0.4*12.5简便怎么算
0.8*0.25*0.4*12.5的简便算法
12.5×4-0.8×0.25 求巧算
1.25*2.3*0.8 2.4*1.8*7.6*1.8 3.2*0.25*4 32*0.125*2.5 求简算,
求比值,21:35,5/6:4/9 0.8:0.32 0.4:2/3 1/4:0.25
化简下面各比.168:84 0.25:1 4分之1 5.6:4.2 3:0.5 27:54 1.2:0.12