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Assess Yourself

How well do you understand the ideas 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? These questions will help you find out. Go back to the lesson if you don't know an answer.

What numbers do we need to round to the nearest 100?

  1. 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200
  2. 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70

Yes! Those are the correct numbers.

Sorry, those are not the correct numbers.

Sorry, those are not the correct numbers.

Which number line rounds 732 to the nearest 100?

  1. Number line: 0 through 1,000. 800 is circled in red.
  2. Number line: 0 through 1,000. 800 is circled in red.

Sorry, that was not the correct number line.

Sorry, that was not the correct number line.

That’s right! That is the correct number line.

Use the chart to round 673 to the nearest 100.

  1. 670
  2. 600

Sorry, that was not correct. 673 rounds up to 700.

Sorry, that was not correct. 673 rounds up to 700.

Great job! 673 rounds up to 700.

Round 729 to the nearest 100.

  1. 730
  2. 800

You did it! 729 rounds down to 700.

Sorry, that was not correct. 729 rounds down to 700.

Sorry, that was not correct. 729 rounds down to 700.

Which number line rounds 585 to the nearest 100?

  1. Number line: 0 through 1,000.
  2. Number line: 0 through 1,000.

Sorry, that was not the correct number line.

That’s right! That is the correct number line.

Sorry, that was not the correct number line.

Use the chart to round 926 to the nearest 100.

Thousand Chart: 100's columns are highlighted, and an arrow on top of the chart, pointing left and right to the chart. 900 is circled in red, 910 highlighted in orange and 920 highlighted in green.

  1. 930
  2. 1,000

Great job! 926 rounds down to 900.

Sorry, that was not correct. 926 rounds down to 900.

Sorry, that was not correct. 926 rounds down to 900.

Round 396 to the nearest 100.

Number line: 0 through 1,000, and 400 is cicrled.

  1. 300
  2. 390

Sorry, that was not correct. 396 rounds up to 400.

Sorry, that was not correct. 396 rounds up to 400.

You did it! 396 rounds up to 400.

Which number line rounds 215 to the nearest 100?

  1. Number line: 0 through 1,000, and 300 is cicrled.
  2. Number line: 0 through 1,000, and 300 is cicrled.

That’s right! That is the correct number line.

Sorry, that was not the correct number line.

Sorry, that was not the correct number line.

Use the chart to round 952 to the nearest 100.

  1. 950
  2. 900

Sorry, that was not correct. 952 rounds up to 1,000.

Great job! 952 rounds up to 1,000.

Sorry, that was not correct. 952 rounds up to 1,000.

Round 83 to the nearest 100.

Number line: 0 through 1,000, and 100 is circled.

  1. 80
  2. 0

Sorry, that was not correct. 83 rounds up to 100.

Sorry, that was not correct. 83 rounds up to 100.

You did it! 83 rounds up to 100.

Summary

Questions answered correctly:

Questions answered incorrectly: