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
答
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
答
=9999*8
=10000*8-8
=79992
=19*(27+40+33)=19*100=1900
答
9999*(8888/1111)
=9999*8
=10000*8-8
=79992