A group of 60 fourth-graders is going on a field trip. If each bus holds 24 people, how many buses are needed for the field trip?

Question

60 groups of 4th graders

each bus holds 24 people

Answer 1

Start with 60.  Every time you subtract 24, you need a bus. Sooooo,

 

60 - 24 = 36, 

36 - 24 = 12

12 4th graders still need a bus to go on.  So you need 3 buses.