an integer plus and integer will always be an integer. We say integers are closed under addition.
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If the integer subtracted is smaller than or equal to the first integer, then the answer is positive. Otherwise, if the integer subtracted is larger, then the answer is negative.
x+2
One plus one does equal two. If you have one object, then bring in another object, you will have one more than what you started with. That would be two.
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