899×99

问题描述:

899×99
7.4*9.9+0.74
9.75*89.6/9.75*9.75/89.5/9.75
99999*22222+33333*33334
30.7-0.12*2-0.76
99*99+9.9/0.1
3.15/4-2.15*0.25
1111*37+9999*7

(900-1)*(100-1)=90000-100-900+1=890017.4*(10-0.1)+0.74=74-0.74+0.74=74(9.75/9.75)*(9.75/9.75)*(89.6/89.6)=133333*(3*22222+33334)=33333*(66666+33334)=33333*100000=333330000030.7-(0.24+...