1. Lesson 4-12 Example 4 4-12 Solve. REMODELING Kenyi is remodeling her bathroom. The room is a square with lengths of 8 feet on each side. If each floor tile is one square foot, how many floor tiles will she need? Understand Read the problem. Write what you know. The bathroom is a square with lengths of 8 feet. Each tile is one square foot.

2. Lesson 4-12 Example 4 4-12 Plan Pick a strategy. One strategy is to draw a diagram. You can make an array to represent her bathroom.

3. Lesson 4-12 Example 4 4-12 Solve Count the squares to find how many square feet fill the room. That is the same number as the number of tiles Kenyi will need. If you count the squares, the sum is the same as the product of 8 × 8. So Kenyi will need 64 tiles.

4. Lesson 4-12 Example 4 4-12 Check Does your answer seem reasonable? Look over your solution. Did you answer the question?