
1.  A board game contains 28 greencoins, 45 red coins, and 76 yellow coins. How many coins are there in all?     
2.  Brown has a small library at home. He has169 books on History, 83 books on Geography, and 139 books on Science. How many books does he have altogether?     
3.  Mrs.Baker delivered 217 letters in June, 251 letters in April, and 255 letters inMay. How many letters did she deliver in the three months?     
4.  For her new kitchen, Mrs Buffet bought a crockery set, a cutlery set and a pressure cooker. Each item cost $ 74 . How many dollars did she spend?     
5.  Last month, Jack worked for 172 hours, Greg worked for 122 hours, and Edward worked 39 hours more than Greg. How many hours did they work altogether?     
 