9999乘8888除1111的简算19乘27加190乘4加19乘33

问题描述:

9999乘8888除1111的简算
19乘27加190乘4加19乘33

9999*8888/1111=1111*9*8888/1111=9*8888=8888*(10-1)=88880-8888=79992
19*27+19*10*4+19*33=19*(27+40+33)=19*100=1900

=9999*8
=10000*8-8
=79992

=19*(27+40+33)=19*100=1900

9999*(8888/1111)
=9999*8
=10000*8-8
=79992