Problem:
The product 8×.25×2×.125=
Answer Choices:
A. 81
B. 41
C. 21
D. 1
E. 2
Solution:
The product can be rewritten as 8×41×2×81=8×81×41×2=21.
Answer: C.
The problems on this page are the property of the MAA's American Mathematics Competitions