Mathy (my mascot mammoth) and I show children how much fun it is to add three numbers. I show that you can add them in any order and get the same answer. We also add (and Mathy jumps!) on the number line.
Near the end, the lesson contains some review problems: first, doubles, and then a simple addition table that many children like to fill in as a fun puzzle. Pause the video to let your child think on the problems. This lesson is meant for first grade math.
Check out also my inexpensive math books, available as instant downloads and as printed books, at http://www.mathmammoth.com/blue-series.php
This topic (adding three numbers) is covered in the book Math Mammoth Addition 1 at http://www.mathmammoth.com/addition_1.php
Tagged under: Addition,Number,Mathematics (Field Of Study),grade 1,fun,math,children
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