# Basic Algebra/Introduction to Basic Algebra Ideas/Working With Negative Numbers

## Contents

## Vocabulary[edit]

- Positive
- Negative

## Lesson[edit]

### Negative Numbers[edit]

A **positive** number is a number greater than zero.

A **negative** number is a number less than zero. You make a negative number by doing the negative operation on a positive number. You use the **" – "** sign for the negative operation. This sign is the same you use for subtracting.

### Adding and Subtracting[edit]

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 result negative.

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

You do the same for dividing.

### Exponentiating[edit]

Exponentiating a negative number to an even (a number you can divide by two) power makes the result positive.

Exponentiating a negative number to an odd (a number you can not divide by two) power makes the result negative.

### Order of Operations[edit]

The negative operation has the same precedence as multiplying and dividing.