Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

Talk:2011 AMC 10B Problems/Problem 23

Revision as of 18:28, 16 March 2011 by Saagarjha (talk | contribs) (Created page with 'I don't get the Pascal's Triangle solution. I did it using Pascal's triangle, but I had more steps, I didn't do it like that. How did you ignore the tens digit and get the right …')
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

I don't get the Pascal's Triangle solution. I did it using Pascal's triangle, but I had more steps, I didn't do it like that. How did you ignore the tens digit and get the right answer?

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=Talk:2011_AMC_10B_Problems/Problem_23&oldid=37572"