Unit 8 Contents

Check-In: Questions 1–8

Use tiles or Centimeter Grid Paper to help you solve these problems. Write a number sentence to go with each problem.

1. Sam made a rectangle with 30 tiles. If there are 6 rows, how many tiles are in each row?
2. Julia made a rectangle with 7 rows and 5 tiles in each row. How many tiles did she use? Explain how you solved this problem.
3. Sara made a rectangle with 24 tiles. There are 8 tiles in each row. How many rows are there?
4. A rectangle with 12 tiles has 3 different colors of tiles. There is an equal number of each color. How many tiles of each color are there?

5. Arrange 20 tiles into rectangles in as many ways as you can. Write a number sentence for each rectangle.
6. Arrange 13 tiles into rectangles in as many ways as you can. Write a number sentence for each rectangle.
7. Arrange 16 tiles into rectangles in as many ways as you can. Write a number sentence for each rectangle.
8. Look at Question 7. Explain how turn-around facts can help you find all the rectangles possible with 16 tiles.