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• When subtracting the largest number from the smallest number,
• a pattern emerges:
• 1. If the numbers have the same digits,
• the difference will always be zero.
• 2. If the numbers have different digits,
• the difference will be the highest digit value minus the lowest digit value.
• For example,
• subtracting 9876 from 19842 gives 10,566 (8 – 1 = 7, 9 – 1 = 8, 8 – 7 = 1, 6 – 6 = 0).