1996 AHSME Problems/Problem 1
Problem
The addition below is incorrect. What is the largest digit that can be changed to make the addition correct?
Solution
Doing the addition as is, we get . This number is larger than the desired sum of . Therefore, we must make one of the three numbers smaller.
We may either change , , or . Either change results in a valid sum. The largest digit that could be changed is thus the in the number , and the answer is .
See also
1996 AHSME (Problems • Answer Key • Resources) | ||
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