Outline Mathematics
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Copyright © 1996-2012 Alexander Bogomolny
Solution
In the addition problem below, different letters stand for different digits. AH represents a two-digit number and HEE represents a three-digit number. What number does HEE represent?
(In the text, some words are omitted. These have been underlined. Click just above the line. See what happens.)
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The leftmost digit of HEE is obtained from adding a one-digit carry to a one-digit A,A,H,E. It may only be 1,0,1,2,3,9,. Therefore,
Answer: HEE = 100.
References
- G. Lenchner, Math Olympiad Contest Problems For Elementary and Middle Schools, Glenwood Publications, NY, 1997
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