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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.

Which array is 2 windows tall and 3 windows across?

  1. 3 x 3 array
  2. 2 x 2 array

Sorry, that is not right. The 2 by 3 array is correct.

Sorry, that is not right. The 2 by 3 array is correct.

Yes! The 2 by 3 array is correct.

Which repeated addition sentence matches the array?

3 x 3 array

  1. 3 + 3 = ?
  2. 9 + 9 + 9 = ?

Sorry, that is not right. 3 + 3 + 3 = ? is correct.

That is right! 3 + 3 + 3 = ? is correct.

Sorry, that is not right. 3 + 3 + 3 = ? is correct.

Which multiplication sentence matches the array?

2 x 6 array

  1. 6 x 4 = ?
  2. 2 x 3 = ?

Sorry, that is not correct. 6 x 2 = ? is correct.

Sorry, that is not correct. 6 x 2 = ? is correct.

Great job! 6 x 2 = ? is correct.

What is the total number of windows?

7 x 2 array of windows. 7 + 7 = ? 2 x 7 = ?

  1. 7
  2. 21

Sorry, that is not correct. There are 14 windows.

Excellent! There are 14 windows.

Sorry, that is not correct. There are 14 windows.

Which array is 5 windows tall and 3 windows across?

  1. 4 x 3 array
  2. 4 x 4 array

Yes! The 5 by 3 array is correct.

Sorry, that is not right. The 5 by 3 array is correct.

Sorry, that is not right. The 5 by 3 array is correct.

Which repeated addition sentence matches the array?

4 x 4 array

  1. 4 + 4 + 4 = ?
  2. 3 + 3 + 3 + 3 = ?

Sorry, that is not right. 4 + 4 + 4 + 4 = ? is correct.

Sorry, that is not right. 4 + 4 + 4 + 4 = ? is correct.

That is right! 4 + 4 + 4 + 4 = ? is correct.

Which multiplication sentence matches the array?

6 x 3 array

  1. 3 x 3 = ?
  2. 6 x 4 = ?

Sorry, that is not correct. 3 x 6 = ? is correct.

Great job! 3 x 6 = ? is correct.

Sorry, that is not correct. 3 x 6 = ? is correct.

What is the total number of windows?

4 x 5 array of windows. 4 + 4 + 4 + 4 = ? 5 x 4 = ?

  1. 25
  2. 16

Excellent! There are 20 windows.

Sorry, that is not correct. There are 20 windows.

Sorry, that is not correct. There are 20 windows.

Which multiplication sentence matches the array?

3 x 7 array

  1. 2 x 7 = ?
  2. 3 x 6 = ?

Sorry, that is not correct. 7 x 3 = ? is correct.

Sorry, that is not correct. 7 x 3 = ? is correct.

Great job! 7 x 3 = ? is correct.

What is the total number of windows?

8 x 3 array of windows. 8 + 8 + 8 = ? 3 x 8 = ?

  1. 20
  2. 16

Sorry, that is not correct. There are 24 windows.

Excellent! There are 24 windows.

Sorry, that is not correct. There are 24 windows.

Summary

Questions answered correctly:

Questions answered incorrectly: