math

Using each of the 7 digits 1, 2, 3, 4, 5, 6, 7 only once, what is the difference between the smallest 4-digit number that can be made and the largest 3-digit number that can be made?

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asked by nisrin

  1. largest 4 digit number = 7654
    smallest 3 digit number = 123

    take the difference between them

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    posted by Reiny

  2. smallest 4 digit > 1234
    largest 3 digit > 765
    1234 - 765
    difference > 469

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    posted by Chelle

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