## Use Reasoning

## Work Time

# Use Reasoning

Watch the video that shows Karen and Maya use reasoning as they discuss how to subtract positive and negative numbers.

- What reasoning did Karen use to convince Maya that 6 − (−2) is not 4?
- How did the number line help Karen explain her reasoning?
- Can you make a generalization about subtracting integers?

VIDEO: Mathematical Practice 2

## Hint:

Your generalization should involve changing a subtraction problem to an addition problem.