Add Numbers: Number Line

The video tutorial explains the concept of a number line, which is a straight line marked at equal intervals with zero as the origin. Numbers to the right of zero are positive, while those to the left are negative. The tutorial demonstrates how to use number lines to perform addition, including adding positive numbers and combining positive and negative numbers. It provides examples to illustrate these operations and emphasizes the visual model that number lines offer for understanding addition. The tutorial concludes by encouraging practice with number lines to enhance understanding.

Describe how to use a number line to solve the problem 4 + -5.

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What happens when you move to the left on a number line?

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