1.  There are 13 cakes. Each cake is cut into 7 parts. Each part is further cut into 2 pieces. How many cake pieces are there in all? 
  

2.  The Professors at the State University drank 130 cups of tea yesterday. They drank 69 cups in the morning and 41 in the afternoon. How many did they drink in the evening? 
  

3.  Warren has a collection of 104 books. He donated 17 books last year and 25 books this year. How many books does he still have? 
  

4.  A school has 3 dining halls. Each dining hall has25 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 145 hours, and Edward worked 37 hours more than Jack. How many hours did they work altogether? 
  
