# Wikijunior:Introduction to Mathematics/Negative Numbers

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## Lesson[edit]

### Adding and Subtracting[edit]

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Adding a negative number is the same as subtracting a positive number.

Subtracting a negative number is the same as adding a positive number.

### Multiplying and Dividing[edit]

Multiplying a negative number by a positive number, or a positive number by a negative number makes the answer negative.

Multiplying a negative number by a negative number makes the answer positive.

Do the same for dividing.