How do you evaluate #80+ ( - 63) #?

1 Answer
xypeilo
Mar 29, 2017

It's basically saying #80-63#, so the answer is #17#.

To put it visually:

#< -63 ... 0 ... 80 >#

Pretend that's a timeline. They want you to ADD -63 to 80, so you would count down from -63 to the right of the timeline--and you would land on 17.

So #80-63=17#

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