1/8+1/24+1/80+1/120
=(1/8+1/80)+(1/24+1/120)
=11/80+1/20
=15/80
=3/16
1/8+1/24+1/80+1/120的简便算法.
1/8+1/24+1/80+1/120的简便算法.
当天答对给分.
x*[12/(12+18)]+(14-x)*[9/(9+3)]=14*(1/2)
当天答对给分.
x*[12/(12+18)]+(14-x)*[9/(9+3)]=14*(1/2)
数学人气:253 ℃时间:2020-03-12 01:38:28
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