99十33x17的简便计算

索斩鬼303899十264十101十136简便计算? -
韶馥倪15517754189 ______ 简便计算过程方法如下解:99+264+101+136=(99+101)+(264+136)=200+400=600

索斩鬼3038简便算法括号99加十七分之六括回乘34 -
韶馥倪15517754189 ______ 简便算法括号99加十七分之六括回乘34 =99x34+6/17x34 =99x34+12 =100x34+12-34 =3412-40+6 =3378

索斩鬼3038用简便方法计算.99、9x7、8十33、3x6、61 -
韶馥倪15517754189 ______ 99.9*7.8+33.3*6.61=33.3*3*7.8+33.3*6.61=33.3*23.4+33.3*6.61=33.3*(23.4+6.61)=33.3*30.01=33.3*30+33.3*0.1=999+0.333=999.333

索斩鬼303842x99十43简便算法,807X9.9十80.7简便算法,56X9.9简便算法 -
韶馥倪15517754189 ______ 42x99十43简便算法, 42x99十43 =42*(99+1)+1 =4200+1 =4201 807X9.9十80.7简便算法 807X9.9十80.7 =807*(9.9+0.1) =807*10 =8070 56X9.9简便算法 56X9.9 =56*(10-0.1) =56*10-56*0.1 =554.4

索斩鬼3038用简便方法怎么算99十78十33x66 -
韶馥倪15517754189 ______ 99*78+33*66 =99*78+99*22 =99*(78+22) =99*100 =9900

索斩鬼303899Ⅹ127十99的简便算法 -
韶馥倪15517754189 ______ 99Ⅹ127十99=99*128=(100-1)*128=12800-128=12672

索斩鬼303899x31十99简便计算 -
韶馥倪15517754189 ______ 99x31十99简便计算 =99*(31+1) =99*32 =3168

索斩鬼3038243x99十243用简便方法怎么算 -
韶馥倪15517754189 ______ =243*(99+1)=24300

索斩鬼3038九十九乘二十二加三十三乘三十四怎样简算 -
韶馥倪15517754189 ______ 99*22+33*34 =33(66+34) =33*100 =3300

索斩鬼3038l7/25x5/19十14/25x17/19的简算 -
韶馥倪15517754189 ______ 原式=17x(1/25)x5x(1/19)+14x(1/25)x17x(1/19)=17x(1/25)x[(5x(1/19)+14x(1/19)]=17x(1/25)x1=17/25