Adding numbers with different signs (Full video)

Khan Academy

Supporting grades: 7

Description: Use a number line to add 15 + (-46) + 29. Created by Sal Khan and Monterey Institute for Technology and Education. Let's just think about this first part over here where we have 15 plus negative 46. So let's just do 15 plus negative 46. Let me draw a number line here, just so we can properly visualize what is going on.

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