急求20道数学加减混合运算题(加减)
问题描述:
急求20道数学加减混合运算题(加减)
答
1+1/5+1/6-1/12-1/1=?1+1/5+1/6-1/12-1/2=?1+1/5+1/6-1/12-1/3=?1+1/5+1/6-1/12-1/4=?1+1/5+1/6-1/12-1/5=?1+1/5+1/6-1/12-1/6=?1+1/5+1/6-1/12-1/7=?1+1/5+1/6-1/12-1/8=?1+1/5+1/6-1/12-1/9=?1+1/5+1/6-1/12-1/10=...