Adding Integers Worksheet 1: Find the sum of each expression. Click the button below to try all our FREE PDF printable pre-algebra worksheets and master your pre-algebra knowledge.

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Integers are always whole numbers. They can be either positive or negative. There are some rules that you have to follow in order to add and subtract expressions with positive and negative integers.

If the signs of the integers match, we will add the given integers together and keep the sum with the same sign.

Example: 5 + 6 = 11

Example: (-5) + (-6) = -11

If you have to add one positive and one negative number, or two integers with different signs that don’t match, you have to subtract the integers as if they were all positive and keep the answer with the larger integer’s sign.

Example: 5 + (-6) = -1

Example: (-5) + 6 = 1

Although, this worksheet is to add integers, let’s also learn how to subtract integers with the same and different signs.

This is similar to adding integers with different signs. If the signs of the integers match, we will have to subtract the smaller integer from the larger integer and keep the difference with the larger integer’s sign.

Example: 5 – 6 = -1

Example: (-5) – (-6) = 1

This is similar to adding integers with the same sign.

Example: 5 – (-6) = 11

Example: (-5) – 6 = -11