1. There are 29 cakes. Each cake is cut into 6 parts. Each part is further cut into 3 pieces. How many cake pieces are there in all?   2. The Professors at the State University drank 243 cups of tea yesterday. They drank 71 cups in the morning and 76 in the afternoon. How many did they drink in the evening?   3. Darren has a collection of 141 books. He donated 16 books last year and 27 books this year. How many books does he still have?   4. A school has 4 dining halls. Each dining hall has17 tables. If there are four children to each table, how many children stay for lunch?   5. Last month, Jack worked for 167 hours, Greg worked for 160 hours, and Edward worked 34 hours more than Jack. How many hours did they work altogether?