Problem:
What is the value of
(22−2)−(32−3)+(42−4)?
Answer Choices:
A. 1
B. 2
C. 5
D. 8
E. 12
Solution:
(22−2)−(32−3)+(42−4)=2−6+12= (D) 8​.
The problems on this page are the property of the MAA's American Mathematics Competitions