Review for Chapter 4 Test

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1. How can you use mental math to find the answer to 20 X 60? Mental math is math you can do in your head.

• Multiply 2 and 6 and add 1 zero after the product.
• Multiply 2 and 6 and add 2 zeros after the product.
• Multiply 2 and 6.

2. Solve 50 x 100. Write the product below.

3. Mr. Burt’s class is taking a field trip to the museum. The trip will cost $27 for each student. There are 16 students in his class. Estimate how much it will cost for the class to go on the trip. (Remember to round both numbers first in order to estimate). Enter the amount below.

4. Mr. Burt’s class is taking a field trip to the museum. The trip will cost $27 for each student. There are 16 students in his class. What is the actual cost of the field trip?

6. Use the area model to find the product of 15 X 12. Write the answer below.

7. Which multiplication equation represents the model shown below?

• 400 X 3= 1200
• 24 X 30= 546
• 42 X 13= 546

8. Aiden has 36 marbles. Zane has 17 times as many marbles as Aiden. How many marbles does Zane have?

9. What does the word “product” mean in math?

• The answer to an addition problem
• The answer to a subtraction problem
• The answer to a mutliplication problem
• The answer to a division problem

10. What is the product of 43 and 27?