Unit 4 Contents

Mr. Moreno keeps a bin full of square-inch tiles in the classroom supply closet. There are 33 bags in the bin and each bag has 54 tiles. Frank and Tanya want to figure out how many total tiles are in the bin.

15. Frank thinks about the problem this way:

1. Mr. Moreno's class calls Frank's method the combination method. Why do you think they chose that name?
2. Explain how Frank divided the problem into two smaller problems.
3. What method do you think Frank used to solve 54  30?
4. What does the 1 mean above the tens column in 54  3?

 

16. Solve these problems using Frank's combination method.
1. 
2. 
3.