Learn About Expanding Numbers

Are your students currently learning how to express numbers in different ways? This set of 20 teaching sides is the perfect teaching tool to help explore expanding numbers in the classroom. Created and designed by a teacher to include the just the right number of engaging check-in points and informative slides – this will be your best friend in the classroom. 

This set of teaching slides has students learning how to expand numbers right up to 9-digit numbers. But it can be adapted and used to suit all levels in the classroom.

Expanded Form vs Partitioning Numbers

While expanded form and partitioning numbers share similarities in that they both involve breaking down a number into its constituent parts, they are not precisely the same concept. Here are the differences:

Expanded Form

Expanded form is a specific representation of a number that decomposes into a sum of its place value components. For example,  4,589 is expanded into 4,000 + 500 + 80 + 9. Each part corresponds to a specific place value – thousands, hundreds, tens, and ones.

Partitioning Numbers

Partitioning numbers is a general concept that involves breaking down a number into parts or components, including various methods like palace value, equal parts, prime factors, odd and even components, and more. 

Therefore, while the expanded form is one way to partition a number by representing it as a sum of its place value components, partitioning numbers is a broader concept.

Download and Teach Today!

Use the dropdown menu to choose between the Microsoft PowerPoint version or Google Slide version of this resource. Make sure to show it in Presenter mode.

This resource was created by Lindsey Phillips, a Teach Starter collaborator.

More Expanding Numbers Resources

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