Khan Academy: Adding Negative Numbers Example

Guiding viewers through the addition and subtraction of numbers, this video includes many tips to help new learners internalize the concept of a number line. It clarifies the relationship between positive and negative numbers, including...

This video will demonstrate adding mixed numbers. Sal explains that adding mixed numbers can be done by looking at the whole number separately from the fraction. Because his explanation is brief, this video would be great as a supplement...

Demonstrates how to use a blank number line to visualize how to add three 2-digit negative numbers. [5:41]

Practice adding positive and negative single-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Review the basic of adding negative numbers and try some practice problems.

Practice matching number line diagrams to addition expressions involving negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice matching number line diagrams to addition expressions involving negative numbers.

Practice adding positive and negative single-digit numbers.

Practice explaining the meaning of negative numbers in different scenarios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Sal shows how to model 6 + (-2) using vertical number lines.