Adding, Subtracting, Multiplying, & Dividing Integers



Adding, Subtracting, Multiplying, & Dividing Integers

How do I add Integers?

How do I subtract Integers?

How do I multiply or divide Integers?

Summary: What did I learn?

Rules:

✓ When integers are opposite signs, find the difference between the two numbers and take the sign of which there are more of.

✓ When integers have the same sign, add the numbers together and keep that sign.

✓ Examples:

Rules:

✓ To subtract integers, you actually add the additive inverse. (aka: keep, change, change) The first number stays the same. Then operation changes from subtraction to addition. And the number after the operation changes to its opposite.

✓ Then follow addition rules.

✓ Examples:

Rules:

✓ When numbers have the same sign; the answer will be positive.

✓ When numbers have different signs; the answer will be negative.

✓ Examples:

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