简算``帮帮忙``

来源：百度知道 编辑：UC知道 时间：2024/06/18 05:23:32
108除以18X75+25X6

2.2X3.83+2又5分之2 X5.17+2又5分之2

333333X18+666666X17+999999X16

49又8分之5 X999+55

108除以18X75+25X6
=6*75+25*6
=6*(75+25)
=6*100
=600

2.2又5分之2X3.83+2又5分之2 X5.17+2又5分之2
=(2+2/5)*3.83+(2+2/5)*(5.17+1)
=(2+2/5)*(3.83+6.17)
=2.4*10
=24

333333X18+666666X17+999999X16
=111111*(3*18)+111111*6*17+111111*9*16
=111111*(54+102+144)
=111111*300
=33333300

49又8分之5 X999+55
=(49+5/8)*(1000-1)+55
=49000+5*125-(49+5/8)+55
=49000+625+50-49-5/8+5
=49630+(3/8)
=49630.375

题意是说108/(25*(54+6))=9/25*5=9/125
还是(108/18)*75+6*25=6*(75+25)=...?
2.2*3.83+2.4*6.17=2.2*(3.83+6.17)+0.2*6.17=22+1.234=...
333333*(18+34+48)=333333*100=...
49625-49.625+55=49625+0.375+5=49630.375(49630又3/8)