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A long addition calculator that is simple to use. Learn and perform vertical addition with this calculator.
Just enter the numbers in the box on top, separated by commas . Enter only positive numbers since you are adding numbers vertically.
For example, if you are adding 786 and 495, the answer is 1281.
Here is how you get the answer:
Keep trying different numbers in the calculator so you know how to add numbers together vertically.

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