25乘14乘18÷(5乘7乘18)如何巧算?

2025-04-07 02:45:33
推荐回答(1个)
回答1:

18/7×25/13+25/7×18/5 =18/7×25/13+25/5×18/7 =18/7×(25/13+25/5) =18/7×25/18 =25/7