Math Unit 2 Review

48 students are going to be divided up into groups. Each of the 6 teachers will have the same number of students in a group. How many students will be in each group?

What number is missing in this equation?
  $36\ \div\ \Delta\ =9$   

Bill has a collection of 32 books he wants to donate to the library. Bill has 4 boxes to carry the books in. Which number sentence shows how Bill can share the books equally?

Val spent $80 at the supermarket. If she bought 10 cases of soda for a party and they each cost the same amount, what was the price of each case of soda?

Samantha bought 8 books this year. She gets a free book every time she buys 1. How many books did she get all together this year?