# Lesson 3 Decimals on Number Lines

• Let’s compare some decimals.

## Warm-up Which One Doesn’t Belong: Decimals and Fractions

Which one doesn’t belong?

1. eight tenths

## Problem 1

Label each tick mark on the number line with the number it represents.

## Problem 2

Here are eight numbers.

• 0.10

• 0.40

• 0.80

• 1.10

• 0.15

• 0.45

• 0.75

• 1.05

1. Locate and label each number on the number line.

2. Which number is greatest? Which is least? Explain how the number line can help determine the greatest and least numbers.

## Problem 3

Locate and label these numbers on the number line.

• 0.24

• 0.96

• 0.61

• 1.12

• 0.08

## Problem 4

Use two numbers from the previous questions to complete each comparison statement so that it is true.

1. is greater than .

2. is less than .

3. is the greatest number.

## Problem 1

Here is a number line with two points on it.

1. Name the decimal located at point A.

2. Is the decimal at point A less than or greater than 0.50? Explain or show your reasoning.

3. Is the decimal at point B greater or less than 0.06? Explain your reasoning.

4. Estimate the decimal at point B.

## Problem 2

Compare the numbers using , , or . Can you think of a way to make comparisons without using a number line? Be prepared to share your thinking.

## Problem 1

1. Locate and label 0.6 and 0.35 on the number line.

2. Compare 0.6 and 0.35 using < or >.