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Puzzles

1089

Take a three digit number. Reverse the digits then take the smaller number from the larger number.
Next add the answer to its reverse.
For example, if 175 is chosen:
$$571-175=396$$ $$396+693=1089$$
What numbers is it possible to obtain as an answer, and when will each be obtained?

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Tags: numbers
If you enjoyed this puzzle, check out Sunday Afternoon Maths XXXII,
puzzles about numbers, or a random puzzle.

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