252525×252252525252×525525×987×655−321666+987×654
(987*655-321)/(666+987*654)
666+987*654分之987*655-321等于多少
(987*655-321)/(666+987*654)*4.5/0.25
666+987*654/987*655-321怎么简算
987-654-321+987
计算987乘655减321除以666加987乘654(简便计算)
666+987*654分之987*655-321 怎么简便运算,还有每一步的意思也要
计算666+987x654分之987×655-321=
321+654+987+987+654+321+987+4561+23等于几
252525/525525*252252/525252
123+321+456+654+789+987*123456789
123+321+456+654+789+987=?