Best Answer

If the integers have the same sign, add the numbers (ignoring the signs*) together and then keep the sign.

Examples:

4 + 5 = 9

-3 + -8 = -(3 + 8) = -11

If the integers have different signs, ignoring the signs* subtract the smaller from the larger and keep the sign of the larger.

Examples:

-3 + 10 → 10 - 3 = 7

5 + -11 → -(11 - 5) = -6

*Ignoring he signs of the numbers is taking the absolute value of the numbers.

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Q: How do you add pairs of integers with the same sign and with different signs?

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