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Assess Yourself

How well do you understand the concepts and skills introduced in this lesson?

Goal:

Goal:

monkey with checkmark and cross

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 do not, review that part of the lesson.

Which addition sentence is NOT a doubles addition fact?

  1. 6 + 6 = 12
  2. 5 + 5 = 10

Sorry, that was the incorrect addition fact.

Sorry, that was the incorrect addition fact.

Yes! That was the correct addition fact.

Which subtraction picture matches the subtraction sentence 8 - 4 = 4?

  1. 10 rockets and 5 of them are crossed out.
  2. 8 rockets and 3 of them are crossed out.

Sorry, that was the incorrect subtraction picture.

Yes! That was the correct subtraction picture.

Sorry, that was the incorrect subtraction picture.

Which doubles subtraction fact has the same whole and parts as the doubles addition sentence 6 + 6 = 12?

  1. 12 - 7 = 5
  2. 10 - 5 = 5

Yes! That was the correct subtraction fact.

Sorry, that was the incorrect subtraction fact.

Sorry, that was the incorrect subtraction fact.

Find the difference of 14 - 7 = ___.

  1. 8
  2. 9

Yes! That was the correct difference.

Sorry, that was the incorrect difference.

Sorry, that was the incorrect difference.

Which subtraction sentence is NOT a doubles subtraction fact?

  1. 14 - 7 = 7
  2. 16 - 8 = 8

Sorry, that was the incorrect subtraction sentence.

Yes! That was the correct subtraction sentence.

Sorry, that was the incorrect subtraction sentence.

Which subtraction picture matches the subtraction sentence 12 - 6 = 6?

  1. 12 rockets and 5 of them are crossed out.
  2. 8 rockets and 4 of them are crossed out.

Sorry, that was the incorrect subtraction picture.

Sorry, that was the incorrect subtraction picture.

Yes! That was the correct subtraction picture.

Which doubles subtraction fact has the same whole and parts as the doubles addition sentence 8 + 8 =16?

  1. 16 - 9 = 7
  2. 12 - 8 = 4

Sorry, that was the incorrect subtraction fact.

Yes! That was the correct subtraction fact.

Sorry, that was the incorrect subtraction fact.

Find the difference of 20 - 10 = ___.

  1. 8
  2. 9

Sorry, that was the incorrect difference.

Sorry, that was the incorrect difference.

Yes! That was the correct difference.

Which subtraction sentence is NOT a doubles subtraction fact?

  1. 20 - 10 = 10
  2. 12 - 6 = 6

Yes! That was the correct subtraction sentence.

Sorry, that was the incorrect subtraction sentence.

Sorry, that was the incorrect subtraction sentence.

Which subtraction picture matches the subtraction sentence 16 - 8 = 8?

  1. 16 rockets and 6 of them are crossed out.
  2. 12 rockets and 6 of them are crossed out.

Sorry, that was the incorrect subtraction picture.

Yes! That was the correct subtraction picture.

Sorry, that was the incorrect subtraction picture.

Which doubles subtraction fact has the same whole and parts as the doubles addition sentence 9 + 9 = 18?

  1. 18 - 10 = 8
  2. 16 - 8 = 8

Sorry, that was the incorrect subtraction fact.

Sorry, that was the incorrect subtraction fact.

Yes! That was the correct subtraction fact.

Find the difference of 10 - 5 = ___.

  1. 6
  2. 7

Yes! That was the correct difference.

Sorry, that was the incorrect difference.

Sorry, that was the incorrect difference.

Which subtraction picture matches the subtraction sentence 20 - 10 = 10?

  1. 20 rockets and 6 of them are crossed out.
  2. 16 rockets and 8 of them are crossed out.

Sorry, that was the incorrect subtraction picture.

Sorry, that was the incorrect subtraction picture.

Yes! That was the correct subtraction picture.

Which subtraction sentence is NOT a doubles subtraction fact?

  1. 16 - 8 = 8
  2. 14 - 7 = 7

Sorry, that was the incorrect subtraction sentence.

Yes! That was the correct subtraction sentence.

Sorry, that was the incorrect subtraction sentence.

Find the difference of 18 - 9 = ___.

  1. 8
  2. 10

Sorry, that was the incorrect difference.

Yes! That was the correct difference.

Sorry, that was the incorrect difference.

Summary

Questions answered correctly:

Questions answered incorrectly: