1. A board game contains 16 yellow coins, 2 white coins, and 19 green coins. How many coins are there in all?   2. Mr. Young borrowed from the library 17 books on Tuesday, 12 books on Wednesday, and 17 books on Thursday. How many books did he borrow altogether?   3. Mrs. Simon delivered 32 letters in May, 20 letters in December, and 28 letters in June. How many letters did she deliver in the three months?   4. For her new kitchen, Mrs. Simon bought a crockery set, a cutlery set and a pressure cooker. Each item cost $ 22 . How many dollars did she spend?   5. Jack played for 8 hours, Greg played for 9 hours, and Edward played 5 hours more than Greg. How many hours did they play altogether?