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A positive integer
The sum of a positive integer and a negative integer is positive when the positive integer is greater. For example: 9 + (-5) = 4 In this case, the positive integer 9 is greater than the negative integer 5. Therefore, the sum is positive.
A positive integer plus a positive integer is equal to a positive integer. For example, 2 + 2 = 4. The two digits being added together are called the addends, while the answer is called the sum.
An integer is any whole number, negative or positive. An example is 1.
An exponent that is a positive integer. For example, x3 has a positive exponent, while 8-5 does not.