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Laabri

Unit 5 - Lesson 12 - Grade 2: Illustrative Mathematics

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13 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

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)

Who is Out of Order?

1

Order Numbers

1
1
1
1
1
1
Cool Down: Estimate and Order
1
1

Find the value of each expression mentally.

1
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1.

1
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2.

1
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3.

1
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4.

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

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5.

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.

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6.

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.

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7.

Order the numbers from least to greatest.

  1. 719

  2. 815

  3. 765

  4. 788

  5. 839

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8.

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.

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9.

Order the numbers from greatest to least.

  1. 199

  2. 245

  3. 218

  4. 173

  5. 137

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10.

Order the numbers from least to greatest.

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

  1. 405

  2. 504

  3. 454

  4. 545

  5. 445

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11.

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

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12.

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

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13.

Order the numbers from least to greatest.

  1. 712

  2. 762

  3. 789

  4. 748

  5. 704