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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.

1. Which benchmark numbers should we use to round 491 to the nearest 10?

  1. 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200
  2. 900, 910, 920, 930, 940, 950, 960, 970, 980, 990, 1,000

2. Which whole ten is closest to 623?

Number line: 600 to 700, with a black dot on 623.

  1. 630
  2. 600

3. Which number line rounds 449 to the nearest 10?

  1. Number line: 400 to 500, with a black dot on 439.
  2. Number line: 400 to 500, with a black dot on 498.

4. Round 671 to the nearest 10.

Number line: 600 to 700, with a black dot on 671.

  1. 680
  2. 700

5. Which benchmark numbers should we use to round 254 to the nearest 10?

  1. 500, 510, 520, 530, 540, 550, 560, 570, 580, 590, 600
  2. 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500

6. Which whole ten is closest to 857?

Number line: 800 to 900, with a black dot on 857.

  1. 850
  2. 900

7. Which number line rounds 812 to the nearest 10?

  1. Number line: 800 to 900, with a black dot on 822.
  2. Number line: 800 to 900, with a black dot on 852.

8. Round 245 to the nearest 10.

Number line: 200 to 300, with a black dot on 245.

  1. 300
  2. 240

9. Which whole ten is closest to 997?

Number line: 900 to 1,000, with a black dot on 997.

  1. 970
  2. 990

10. Round 209 to the nearest 10.

Number line: 200 to 300, with a black dot on 208.

  1. 300
  2. 200

Summary

Questions answered correctly:

Questions answered incorrectly: