×+1÷+× (888÷8+3×333)÷[(+)×]
+++ +++++++
①
②
③13×-11×
④(×25%)×(1.3×40)
999×2.5+333×12.5
①5.27-1.57-3.43+4.73
②÷7+×
③12÷[5.6×(-)]
原价:25元/个
现价:14元/个