Cool Math 4 Kids Addition Help - How Addition Works (Arithmetic) - free online cool math lessons, cool math games, fun math activities, math flash cards to print, calculators and more!

How Addition Works
A beginning addition lesson using sets for kids and parents to work through
together (page 1 of 3)



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This is the very beginning of understanding how addition works.

Let's look at two sets:

Set A	Set B

Count how many triangles are in Set A... There are 2!	Count how many triangles are in Set B... There are 3!

Now, put the sets together into one big set:

Set A and Set B get put together to make 5 triangles

Count how many triangles are in this set...
There are 5!

So, 2+3=5

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