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How many three-digit numbers have the first digit equal to the sum of the other two digits?

User Ogreintel
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Answer:

10

Explanation:

since the first digit must be equal to the sum of the other two digits the first digit must be in the range of 0 to 9 this means there are a total of 10 possible values for the first digit.

User Morten Holmgaard
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