Unit 7 Contents

11. Show John's strategy using the column method.
12. Solve the problem using a different group of number sentences from those of John and Michael. You may choose from Mr. Moreno's number sentences or think of your own to use.
13. How would the answer be different if there were 1151 total players to start with? Explain your reasoning.

Check-In: Questions 14E–F

14. For each of the problems shown below, do the following:
• Write a story or draw a picture that fits the problem.
• Write the division problem as a multiplication problem with a missing factor.
• Write a set of related number sentences that will help you solve the problem.
• Solve the problem and check that your answer is reasonable.
1. 512 ÷ 3
2. 728 ÷ 7
3. 3024 ÷ 6
4. 7000 ÷ 4
5. 4253 ÷ 5
6. 792 ÷ 8

The Rectangle Model

Professor Peabody wants to roll out the red carpet for the district science teams. He forgot to estimate how much carpet he would need and only bought one roll. The label says that one roll covers exactly 2250 square feet. The aisle is 12 feet wide.

1. If Professor Peabody rolled 5 feet of red carpet down the aisle, how many square feet did he roll? How do you know?
2. How many more square feet will he be able to cover with his roll of red carpet?
1. Professor Peabody rolled out another 10 feet of red carpet. How many more square feet did he cover this time? How do you know?
2. How many more square feet will he be able to cover with his roll of red carpet?