Section D: Practice Problems Compare Numbers

Section Summary

Details

In this section we compared numbers. We used objects and drawings to help us figure out which number is more and which is less.

Number 5.
Number 8.
Green and blue cubes.
Group of 8 circles. Group of 5 circles.

 We also learned that we can use what we know about counting to compare the numbers.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10

5 comes before 8 when we count.

5 is less than 8.  8 is more than 5.

Problem 1 (Lesson 17)

Jada put her towers and numbers in order from 1 to 10. Fill in the blanks for the missing numbers.

Connecting cube towers. 1, 2, 4, 5, 6, 8, 10. Numbers, 1. 2. Blank. 4. 5. 6. Blank. 8. Blank. 10.

Problem 2 (Lesson 18)

Here is a connecting cube tower that Mai made.

Connecting cube tower. 5 blue cubes.

  1. Write a number to show how many cubes are in Mai’s tower.

  2. Build a tower that shows 1 more cube than Mai’s tower.
    Write a number to show how many cubes are in the new tower.

  3. Build a tower that shows 1 less cube than Mai’s tower.
    Write a number to show how many cubes are in the new tower.

Problem 3 (Lesson 19)

  1. How many triangles are there? Write a number to show how many triangles there are.

    Green triangles.

  2. How many squares are there? Write a number to show how many squares there are.

    Orange Squares.

  3. Circle the group that has fewer shapes.

    1. Green triangles.
    2. Orange Squares.

Problem 4 (Lesson 20)

  1. Show 5 in as many ways as you can.

    Number 5.

  2. Show 7 in as many ways as you can.

    Number 7.

  3. Circle the number that is more.

    1. Number 5.
    2. Number 7.

Problem 5 (Lesson 21)

  1. Circle the number that is more.

    1. Number 4.
    2. Number 8.

  2. Circle the number that is less.

    1. Number 5.
    2. Number 9.

Problem 6 (Exploration)

What are some different ways to show 6 on your fingers? 
Find as many ways as you can.

How are they the same?
How are they different?

Problem 7 (Exploration)

Grab a handful of connecting cubes or pattern blocks or other small objects.

  1. Count the objects and write down a number for how many.

  2. Are there more than 7 or less than 7?