## Envision Math 1st Grade Textbook Answer Key Topic 2.3 Ordering Numbers to 12 with a Number Line

**Ordering Numbers to 12 with a Number Line**

**Home Connection** Your child used a number line to order numbers to 12.

**Home Activity** Use only the first 12 pages of a book or magazine. Ask questions such as: What page comes after page 5? What page comes before page 3? What page comes between pages 7 and 9?

Question 1.

Answer:

Question 2.

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Question 3.

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Question 4.

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**Guided Practice**

Use the number line below.

Write the number that is before.

Question 1.

Answer:

Question 2.

____ 9 10

Answer:

Write the number that is after.

Question 3.

5 6 ____

Answer:

Question 4.

10 11 ____

Answer:

Write the number that is between.

Question 5.

8 ____ 10

Answer:

Question 6.

9 ____ 11

Answer:

**Do you understand?**

Question.

Do you look left or right to fi nd the number before 2?

Answer:

**Independent Practice**

Use the number line below.

Write the missing numbers.

Question 7.

4 5 6 ____ 8 9 ____

Answer:

Question 8.

2 3 ____ 5 ____ 7 8

Answer:

Question 9.

1 ____ 3 ____ 5 6 ____

Answer:

**Algebra** Use the clues. Write the number.

Question 10.

My secret number is between 4 and 9. It is after 7.

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**Problem Solving**

Solve the problems below.

Question 11.

Kathy reads a book. She reads page 10. Then she skips a page. She reads page 12.

What page did Kathy skip?

___________

Answer:

Question 12.

Yuko gets a number for a race.

His number is between 7 and 9.

What is Yuko’s number?

___________

Answer:

Question 13.

Anita has some crayons. The number she has is between 5 and 8.

Which could be the number of crayons Anita has?

Answer:

Question 14.

Journal Describe the number that comes after 8. Use pictures or words. Write the number.

Answer: