Assess Yourself
How well do you understand the ideas in this lesson?
Goal:
Goal:
Show What You Know!
Assess how well you met your goals.
Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you don't know an answer.
What is the missing addend?
- 20
- 51
- 34
Sorry, that’s not right. The missing addend is 34.
Sorry, that’s not right. The missing addend is 34.
That’s right! This is the missing addend.
What is the missing sum?
- 87
- 20
- 19
Very good! This is the missing sum.
Sorry, that’s not the missing sum. The missing sum is 87.
Sorry, that’s not the missing sum. The missing sum is 87.
Which missing addend is true?
Sorry, this missing addend isn’t correct.
Very good! This is the correct missing addend.
Sorry, this missing addend isn’t correct.
Which addition sentence will help you find the missing digit?
- 6 + ___ = 10
- 1 + ___ = 3
- 7 + ___ = 8
Sorry, this is not the correct addition sentence.
Sorry, this is not the correct addition sentence.
You’re right! This helps you find the missing digit.
What is the missing sum?
- 99
- 11
- 25
Very good! This is the missing sum.
Sorry, that’s not the missing sum. The missing sum is 99.
Sorry, that’s not the missing sum. The missing sum is 99.
Which missing addend is true?
Very good! This is the correct missing addend.
Sorry, this missing addend isn’t correct.
Sorry, this missing addend isn’t correct.
What is the missing addend?
- 20
- 48
- 59
Sorry, that’s not right. The missing addend is 48.
That’s right! This is the missing addend.
Sorry, that’s not right. The missing addend is 48.
What is the missing sum?
- 32
- 10
- 47
Sorry, that’s not the missing sum. The missing sum is 47.
Sorry, that’s not the missing sum. The missing sum is 47.
Very good! This is the missing sum.
Which addition sentence will help you find the missing digit?
- ___ + 9 = 9
- ___ + 3 = 8
- ___ + 6 = 7
Sorry, this is not the correct addition sentence.
You’re right! This helps you find the missing digit.
Sorry, this is not the correct addition sentence.
What is the missing addend?
- 52
- 30
- 10
Sorry, that’s not right. The missing addend is 10.
Sorry, that’s not right. The missing addend is 10.
That’s right! This is the missing addend.
Summary
Questions answered correctly:
Questions answered incorrectly: