0.25+0.25*99=0.25*(99+1)=0.25*100=25 乘法分配律
0.25*99+0.25=0.25*(99+1)=0.25*100=25
99*0.25=100-1*0.25=100*0.25-0.25=25-0.25=24.75
(0.25+0.25*99)*6=0.25*100*6=150 希望我的回答对您有帮助,有问题可以追问.满意请及时采纳,谢谢!
99/0.25/0.4=99/(0.25x0.4)=99/0.1=990如有帮助请采纳,如对本题有疑问可追问,Good luck!
原式=0.25*99+0.25=0.25*(1+99)=0.25*100=25
列式计算为0.25*0.25=0.0625所以原式的计算结果为0.0625.
0.25*99.8=0.25*(100-0.2)=0.25*100-0.25*0.2=25-0.05=24.95
=0.25*99+0.25*1
0.25*9+0.25 =0.25X(9+1)=0.25X10=2.5 望采纳