Year 4 Maths

maths owl

This is an activity from the Mathematics section of the What Your Year 4 Child Needs to Know resource book. To learn more about using Core Knowledge UK resource books, please visit the dedicated pages for teachers, parents, grandparents and home educators. To purchase What Your Year 4 Child Needs to Know, visit our shop. Also, sign up for the free Core Knowledge UK newsletter to receive updates about new resources and activities.

Comparing and Ordering Numbers

When you compare two numbers to see which is greater, always compare the digits in the largest place value first. That means you start from the left. Then compare the number in the next largest place value, and so on. As soon as you find that a number is greater in a place value, the entire number must be greater. Of course, any number that has thousands is greater than any number that just has hundreds. For example, 1,002 > 998. In the same way, 100,002 > 99,998.

Letís look at an example that will help you see how to work out whether <, >, or = belongs between two large numbers. Our numbers are 4,827 and 4,627. If you think of them arranged by place values, you can set them up like this:

decimals etc

First compare the thousands place. 4,000 = 4,000. The thousands are the same. So far the numbers seem equal. Then compare the hundreds place. 800 > 600. So 4,827 > 4,627.

Try to order these numbers from least to greatest:

Now find numbers all over your house, at least six of them, and order them from greatest to least. (Hint: Try the last page-numbers of books, or the amount of energy listed on food packaging.)

This activity is adapted from pages 231-232 of What Your Year 4 Child Needs to Know, which can be purchased here. Click below to see the related activities:

maths owl
maths owl