1-1/6+1/42+1/56+1/72 要用简便方法计算
1-1/6+1/42+1/56+1/72 要用简便方法计算
1、用简便方法计算
用简便方法计算,1,2题
用简便方法计算:7/8×4+0.875+1/6
20/1+30/1+42/1+56/1+72/1+90/1 用简便方法计算.
1/30+1/42+1/56+1/72+1/90 怎么用简便方法计算
1/30+1/42+1/56+1/72(用简便方法计算)
1/42+1/56+1/72+1/90= 用简便方法计算.
用简便方法计算1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72
(13+26)×1/13×1/26用简便方法计算.
用简便方法计算:(2008+1/2006)*1/2007
1/8×(180×16)×1/36用简便方法计算