Difference between revisions of "1987 AIME Problems/Problem 1"

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Revision as of 13:35, 11 February 2007

Problem

An ordered pair $\displaystyle (m,n)$ of non-negative integers is called "simple" if the addition $\displaystyle m+n$ in base $\displaystyle 10$ requires no carrying. Find the number of simple ordered pairs of non-negative integers that sum to $\displaystyle 1492$.

Solution

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See also

1987 AIME (ProblemsAnswer KeyResources)
Preceded by
First Question
Followed by
Problem 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
All AIME Problems and Solutions