You will be watching a video about regrouping. Then you will practice building numbers. Finally, try the challenge to see how much of a Math Maniac you are!
Go to Cool Math 4 Kids. It will show you how to add not 2 numbers, not 3 numbers, but 9 numbers!!!
At the end of the lesson it will give you two math problems. See if you can solve it! Put your answers in the form below.