Lesson 4 Compare Numbers on a Number Line

- Let’s use the number line to compare numbers.

Warm-up Number Talk: Subtract Fives

Find the value of each expression mentally.

$35 - 5$
$35 - 10$
$35 - 15$
$35 - 25$

Activity 1 Compare the Numbers

Partner A:
- Roll 3 number cubes and find the sum.
- Put a counter on the location of the sum.
Partner B:
- Roll 3 number cubes and find the sum.
- Put a counter on the location of the sum on the same number line.
Decide which number is greater and explain.
Use $<$ , $>$ , or $=$ to compare the 2 numbers represented on your number line.

Partner A	$<$ , $>$ , or $=$	Partner B

Activity 2 Compare Larger Numbers

Each partner rolls 2 number cubes and makes a two-digit number.
Locate and label your numbers on the number line.
Use >, <, or = to compare the numbers.
Explain why your comparison is true.

Partner A	$<$ , $>$ , or $=$	Partner B

Practice Problem

Problem 1

Locate and label each pair of numbers on the number line. Then use $<$ or $>$ to compare the numbers.

23 and 27
34 and 43