8888×9999等于多少
8888乘以9999=多少 -
8888X9999 =8888X10000-8888X1 =88880000-10000+1112 =88871112
8888×9999 =8888×(10000-1)8888×10000-8888×1 =88880000-8888 =88871112
8888X9999 =8888X10000-8888X1 =88880000-10000+1112 =88871112
8888×9999 =8888×(10000-1)8888×10000-8888×1 =88880000-8888 =88871112
9999×8888 =(10000-1)×8888 =10000×8888-8888 =88880000-8888 =88871112 希望能帮到你哈,
=88880000-8888 =88871112
9999*8888等于多少需巧算 -
9999×8888 =(10000-1)×8888 =10000×8888-8888 =88880000-8888 =88871112
9999乘以8888的简便计算9999×8888 =(10000-1)×8888 =10000×8888-8888 =88880000-8888 =88871112
8888*9999的简便算法 -
8888*(1000-1)
原式=8888*(10000-1)88880000-8888 =88871112
9999╳8888=??? -
10000*8888-1*8888=
这个只要看最后一位相乘就行了,是8*9=72,最后一位是2,那么结果就是偶数,