Addition of three numbers - fun math lesson for 1st grade
In this 1st grade lesson, I show children how to add three numbers. I explain that you can add them in any order and get the same answer. We also add (and Mathy my mascot 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.
If you cannot see the video above, click here for an alternative video player.
See also
Number line addition — 1st grade video lesson
Compare numbers and sums — 1st grade video lesson
Addition 1 book
Math Mammoth Grade 1 curriculum
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