Use place value understanding and properties of operations to perform multi-digit arithmetic.

What is the Commutative Property of Addition?

When you're adding numbers together, does their order matter? This tutorial can answer that question! It looks at the Commutative Property of Addition!
What is the Associative Property of Addition?

The Associative Property of Addition is a useful tool when you're adding multiple numbers together! Follow along with this tutorial to learn about this property and see how to use it.
What is Place Value for Whole Numbers?

Place value is a building block of numbers. Without place value, we couldn't keep all our numbers straight! This tutorial introduces place value and shows you the parts of a place value chart.