Problem:
What is the value of
Answer Choices:
A.
B.
C.
D.
E.
Solution:
We know that when we subtract negative numbers,
The equation becomes
Like Solution , we know that when we subtract , that will equal as the opposite/negative of a negative is a positive. Thus,
We can group together a few terms to make our computation a bit simpler.
The problems on this page are the property of the MAA's American Mathematics Competitions