0.78×98的简便计算五
0.65×202简便计算五
0.5×2.33×8的简便计算五
0.034×0.5x0.6简便计算五
0.45×2.5的简便
0.125×32×2.5的简便
0.36ⅹ2.5简便
0.62÷2.5的简便
0.79×100.5的简便
0.8×0.25×0.4×12.5简便计算五
