Assess Yourself
How well do you understand the ideas in this lesson?
Goal:
Goal:
Show What You Know!
Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you do not know an answer.
1. Which subtraction sentence matches this thousand chart?
- 300 - 100 = 200
- 600 - 500 = 100
- 500 - 300 = 200
This thousand chart shows 600 - 500 = 100 because it starts at 600 and jumps back 5 rows.
Yes! This thousand chart starts at 600 and jumps back 5 rows.
This thousand chart shows 600 - 500 = 100 because it starts at 600 and jumps back 5 rows.
2. What is the difference?
300 - 100 = ___
- 800
- 300
- 200
200 is the difference because 3 - 1 = 2.
200 is the difference because 3 - 1 = 2.
Correct! 200 is the difference because 3 - 1 = 2.
3. Which subtraction sentence is correct?
- 300 - 200 = 400
- 900 - 400 = 500
- 700 - 600 = 300
900 - 400 = 500 is the correct sentence because 9 - 4 = 5.
Yes! 900 - 400 = 500 is the correct sentence because 9 - 4 = 5.
900 - 400 = 500 is the correct sentence because 9 - 4 = 5.
4. Which subtraction sentence helps you find the difference of 700 - 300?
- 7 - 3 = 4
- 8 - 5 = 3
- 6 - 4 = 2
Correct! If you ignore the zeros in this subtraction sentence, 7 - 3 = 4 helps you find the difference.
If you ignore the zeros in this subtraction sentence, 7 - 3 = 4 helps you find the difference.
If you ignore the zeros in this subtraction sentence, 7 - 3 = 4 helps you find the difference.
5. Which subtraction sentence matches this thousand chart?
- 500 - 200 = 300
- 200 - 100 = 100
- 900 - 800 = 100
Yes! This thousand chart starts at 500 and jumps back 2 rows.
This thousand chart shows 500 - 200 = 300 because it starts at 500 and jumps back 2 rows.
This thousand chart shows 500 - 200 = 300 because it starts at 500 and jumps back 2 rows.
6. What is the difference?
400 - 200 = ___
- 700
- 200
- 400
200 is the difference because 4 - 2 = 2.
Correct! 200 is the difference because 4 - 2 = 2.
200 is the difference because 4 - 2 = 2.
7. Which subtraction sentence has the correct difference?
- 900 - 100 = 300
- 600 - 300 = 200
- 800 - 300 = 500
800 - 300 = 500 has the correct difference because 8 - 3 = 5.
800 - 300 = 500 has the correct difference because 8 - 3 = 5.
Yes! 800 - 300 = 500 has the correct difference because 8 - 3 = 5.
8. What subtraction sentence helps you find the difference of 600 - 200?
- 9 - 6 = 3
- 6 - 2 = 4
- 5 - 3 = 2
If you ignore the zeros in this subtraction sentence, 6 - 2 = 4 helps you find the difference.
Correct! If you ignore the zeros in this subtraction sentence, 6 - 2 = 4 helps you find the difference.
If you ignore the zeros in this subtraction sentence, 6 - 2 = 4 helps you find the difference.
9. Which subtraction sentence matches this thousand chart?
- 800 - 100 = 700
- 700 - 400 = 300
- 500 - 300 = 200
This thousand chart shows 500 - 300 = 200 because it starts at 500 and jumps back 3 rows.
This thousand chart shows 500 - 300 = 200 because it starts at 500 and jumps back 3 rows.
Yes! This thousand chart starts at 500 and jumps back 3 rows.
10. What is the difference?
700 - 100 = ___
- 600
- 300
- 500
Correct! 600 is the difference because 7 - 1 = 6.
600 is the difference because 7 - 1 = 6.
600 is the difference because 7 - 1 = 6.
Summary
Questions answered correctly:
Questions answered incorrectly: