(987*655-321)/(666+987*654)*4.5/0.25
问题描述:
(987*655-321)/(666+987*654)*4.5/0.25
答
(987*655-321)/(666+987*654)*4.5/0.25
=(987*654+987-321)/(666+987*654)*(4.5×4)
=(987*654+666)/(666+987*654)*18
=18