Skip to main content
How Addition Works
A beginning lesson using sets for kids and parents to work through together
Using a Numberline to Add
How to see addition in your head
Place Value Review
A review of place values to get you ready for bigger numbers
Adding Numbers Within 100
Getting used to adding bigger numbers
Adding Numbers Within 100 With Regrouping
Learning how to regroup when adding two-digit numbers
Adding Numbers Within 1000
Learning how to regroup when adding three-digit numbers
A cool way to add long columns of numbers without messing up!
Jet Ski Addition
Copyrights & Fair Use
If you believe that your own copyrighted content is on our Site without your permission, please follow the
Copyright Infringement Notice Procedure.
Ⓒ 2017 Coolmath.com LLC. All Rights Reserved.