Negative numbers

This course is a part of 7th grade, a 7-course Topic series from Khan Academy.

Add and subtract negative numbers, and see how absolute value can be used to find the distance between any two numbers on the number line.

This course contains 9 segments:

Intro to adding negative numbers

Learn how to add negative numbers. By the end of this tutorial, you'll be solving problems like 4 + (-7) with ease!

Intro to subtracting negative numbers

Learn why subtracting a negative number is the same as adding its opposite!

Adding & subtracting with negatives on the number line

Learn how to use number lines to solve negative number addition and subtraction problems.

Adding & subtracting integers

Add and subtract negative numbers using a number line. It's the 7th grade mathematics shuffle: "Slide to the left for a negative value, and slide to the right for a positive value." Be careful, though. Which way do you move if you are subtracting a negative number? The answer awaits!

Adding & subtracting negative fractions

Learn how to add and subtract fractions, even when they're negative.

Addition & subtraction word problems with negatives

See how adding and subtracting negative numbers can be used in different situations.

Absolute value

Find the distance between any two numbers using absolute value.

Properties of addition & subtraction

Apply the properties of addition and subtraction to negative numbers.

Adding & subtracting negative numbers: variables

Feeling positive about all of this negative number stuff? Challenge yourself to solve some more advanced problems, including expressions with variables.