0.5*0.8*0.04*1.25*02.*0.025

0.5×0.8×0.04×1.25×0.2×0.025 0.5*0.8*0.04*1.25*02.*0.025 用简便方法计算：0.5*0.8*0.04*1.25*0.2*0.025 帅锅、美女教我做做! 50×0.8×0.04×1.25×0.02×250简便计算 50×0.8×0.04×1.25×0.02×250 简便算法 0.5*0.8*0.4*1.25*25简便计算 0.625×0.8×0.04×0.5简便计算（递等式计算） 1.25X（8+0.8-0.04）可以巧算吗,如果可以怎么巧算 用简便方法计算：100.01*2.7= 0.42*160+36*1.6-34*3.2= 32*0.25*12.5*0.2*5= 11*22+0.22*3300+330*4.4=0.5*0.8*0.04*1.25*0.2*0.025= 0.92*54+0.46*92= 1.25的倒数,0.8的倒数,0.5的倒数 1.25*1.25*1.25*1.25*1.25*1.25*1.25*0.8*0.8*0.8*0.8*0.8*0.8*0.8如何巧算 设随机变量x~n(0.8,0.04),求下列概率,(1)P(X>0.5) (2)P(-0.2 0.8:0.04的比值 0.5:3/4的比值 5/12:2/3的比值 0.9*1.25+9.1/0.8+1.25 化简比,求比值：0.04:0.5 1.2:1.25 0.07:4.2 8分之5:37.5﹪ 0.4:75﹪ 化简比,求比值：0.04:0.5 1.2:1.25 0.07:4.2 8分之5:37.5﹪ 0.4:75﹪ 小数简便运算的数学题我有7道不会的数学小数简便计算题!分别是：0.5×0.8×0.04×1.25×0.2×0.025/4.6×72×53÷4.6÷72÷53/5.6×16.5÷0.7÷1.1/152.3×4.8-4.8×31.15-4.8×21.15/2.4×7.6=6.5×7.6＋0.76＋7.6/6.3×27＋1.9×21/0 解方程 x/1.25=0.8:2.9 x-0.5x+9/20=0.9