Assess Yourself
How well do you understand the concepts and skills introduced 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? The questions below will help you find out. Make sure you understand why each correct answer is correct— if you don't, review that part of the lesson.
What is the whole in this word problem? There were 12 asteroids flying through space. 5 of the asteroids crashed into a planet. How many asteroids were left flying through space?
- 5
- 12
- 7
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Yes! That was the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
How many astronauts are being taken away?
- 9
- 10
- 14
You’re right! 9 of the astronauts are crossed out.
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
What subtraction sentence matches this picture?
- 10 - 2 = 8
- 12 - 6 = 6
- 14 - 3 = 11
Yes! This subtraction sentence matches the picture. It has 10 astronauts and 2 of them are being taken away.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
What is the whole in this word problem? 9 aliens were washing their spaceship one afternoon. 3 of the aliens fell and were covered with water. How many aliens remained dry?
- 2
- 9
- 6
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Yes! That was the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
How many astronauts are being taken away?
- 15
- 9
- 11
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
You’re right! 11 of the astronauts are crossed out.
What subtraction sentence matches this picture?
- 20 - 6 = 14
- 14 - 6 = 8
- 20 - 7 = 13
Yes! This subtraction sentence matches the picture. It has 20 astronauts, and 6 of them are being taken away.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
What is the whole in this word problem? There were 8 astronauts living in a space station. Only 1 of the astronauts went outside the space station to explore space. How many astronauts remained in the space station?
- 1
- 12
- 8
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Yes! That was the total number of objects.T
How many astronauts are being taken away?
- 2
- 8
- 4
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
You’re right! 4 of the astronauts are crossed out.
What subtraction sentence matches this picture?
- 12 - 5 = 7
- 15 - 3 = 12
- 13 - 8 = 5
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Yes! This subtraction sentence matches the picture. It has 15 astronauts, and 3 of them are being taken away.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
What is the whole in this word problem? There were 19 buttons near the steering wheel of a rocket ship. 7 of the buttons were glowing red. How many of the buttons were not glowing?
- 19
- 4
- 12
Yes! That was the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
How many astronauts are being taken away?
- 9
- 10
- 17
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
You’re right! 10 of the astronauts are crossed out.
Sorry, that was the incorrect answer. Remember to look for the astronauts that are crossed out.
What subtraction sentence matches this picture?
- 17 - 10 = 7
- 9 - 4 = 5
- 11 - 2 = 9
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Yes! This subtraction sentence matches the picture. It has 11 rockets, and 2 of them are being taken away.
What is the whole in this word problem? There were 7 moon rocks in a scientist’s office. 4 of the moon rocks had purple speckles. How many moon rocks did not have purple speckles?
- 7
- 13
- 9
Yes! That was the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
Sorry, that was the incorrect answer. Read through the word problem again and look for the total number of objects.
How many moon rocks are being taken away?
- 13
- 19
- 5
You’re right! 13 of the moon rocks are crossed out.
Sorry, that was the incorrect answer. Remember to look for the moon rocks that are crossed out.
Sorry, that was the incorrect answer. Remember to look for the moon rocks that are crossed out.
What subtraction sentence matches this picture?
- 20 - 5 = 15
- 15 - 3 = 12
- 13 - 8 = 5
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Sorry, that was the incorrect answer. Remember to look for the whole and the part in the picture.
Yes! This subtraction sentence matches the picture. It has 13 asteroids, and 8 of them are being taken away.
Summary
Questions answered correctly:
Questions answered incorrectly: