Find the difference between the greatest and the least number that can be written using the digits 6, 2, 7, 4, 3 each only once.
Solution:
Greatest number which can be written using the digits 6, 2, 7, 4, 3 only once = 76,432
Smallest number which can be written using the digits 6, 2, 7, 4, 3 only once = 23,467
Difference between the greatest and smallest number = 76,432 – 23,467 = 52,965
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