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Unit 5 - Lesson 12 - Grade 2: Illustrative Mathematics

Last updated 9 months ago
13 questions
Note from the author:
Grade 2 Unit 5
Lesson 12: Order Numbers
CC BY 2021 Illustrative Mathematics®
Grade 2 Unit 5
Lesson 12: Order Numbers
CC BY 2021 Illustrative Mathematics®
Lesson: Order Numbers

Number Talk: Subtract Tens (Warm Up)

Find the value of each expression mentally.
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1

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1

Who is Out of Order?

Kiran and Andre put a list of numbers in order from least to greatest.

1

Who do you agree with? Why?

Be prepared to explain your thinking. Use what you know about place value or the number line to justify your reasoning.

Order Numbers

1

Estimate the location of 839, 765, 788, 815, and 719 on the number line. Mark each number with a point. Label the point with the number it represents.

1

Order the numbers from least to greatest.

  1. 765
  2. 719
  3. 839
  4. 815
  5. 788
1

Estimate the location of 199, 245, 173, 218, and 137 on the number line. Mark each number with a point. Label the point with the number it represents.

1

Order the numbers from greatest to least.

  1. 173
  2. 218
  3. 199
  4. 137
  5. 245
1

Order the numbers from least to greatest.


Explain or show your thinking. Use the number line if it helps.

  1. 445
  2. 405
  3. 504
  4. 454
  5. 545
1

Was it more helpful for you to put the numbers in order first or put them on the number line first? Explain.

Cool Down: Estimate and Order
1

Estimate the location and label 748, 704, 762, 789, and 712 on the number line.

1

Order the numbers from least to greatest.

  1. 762
  2. 704
  3. 748
  4. 712
  5. 789