Programmed Math/Addition

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Prerequisites: Counting

Addition of whole numbers can be done pretty much by just counting.

For example: 4 + 1 = 5, the same as counting to the next number, but 4 + 2 = 6, you count twice. Technically, you are expanding 4 + 2 = 6 to 4 + 1 + 1 = 6.