Unit 7 Contents

15. Find the following sets of products using any method you choose. Look for patterns as you solve the problems. Check your work on a calculator.
1. 
2. 
3. 




4. 
5. 5 50 =
6. 800 700 =




7. 4000 70 =
8. 300 2000 =
9. 8000 500 =
16. Use Nila's rule from Question 13 to find the following products. Use a calculator to check your work if needed.
1. 
2. 
3. 




17. Find the value of n that makes each number sentence true.
1. n 40 = 200
2. n 50 = 2000
3. n 10 = 2000
4. n 80 = 4000
5. 700 n = 8 7000
6. 60 20 = 6 2 n

Use the Practice Menu on the Practice Multiplying with Tens page in the Student Activity Book to choose practice with multiplying numbers that end in zero.

Check-In: Question 18

18. Irma and Nila get a package of construction paper. The package contains 20 sheets each of red, blue, yellow, green, and black paper. For Parts A–C, solve the problem and show or tell how you solved it.
1. How many sheets of construction paper are in the package?
2. There are 20 packages of construction paper in a box. How many sheets of construction paper are in a box?
3. If Bessie Coleman School orders 300 boxes of construction paper, how many sheets of construction paper will the school receive?