1. A board game contains 77 bluecoins, 87 white coins, and 97 red coins. How many coins are there in all?   2. Allen has a small library at home. He has50 books on History, 100 books on Geography, and 109 books on Science. How many books does he have altogether?   3. Mrs.Anderson delivered 205 letters in May, 201 letters in April, and 293 letters inOctober. 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 $ 66 . How many dollars did she spend?   5. Last month, Jack worked for 164 hours, Greg worked for 127 hours, and Edward worked 37 hours more than Greg. How many hours did they work altogether?