Problem:
33+33+33=
Answer Choices:
A. 34
B. 93
C. 39
D. 273
E. 327
Solution:
33+33+33=3(33)=3(3×3×3)=3×3×3×3=34.
OR
33+33+33=27+27+27=81=9×9=3×3×3×3=34.
Answer: A.
The problems on this page are the property of the MAA's American Mathematics Competitions