101.1-903.6/18

问题描述:

101.1-903.6/18

101.1-903.6/18 =909.9/9-(909.9-6.3)/18 =909.9/9-909.9/18+6.3/18 =909.9/18+6.3/18 =916.2/18 =9162/180 (9+1+6+2=18) =1018/20 =509/10 =50.9

101.1-903.6/18 =909.9/9-(909.9-6.3)/18 =909.9/9-909.9/18+6.3/18 =909.9/18+6.3/18 =916.2/18 =50.9