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Nope - not a religious post - I'll leave that to the 'experts'
.
Pick a 3 digit # (digits must be different ie. 123 or 456)
Reverse that # (123 become 321)
Substract the smaller # from the larger (321 - 123 = 198)
Take the answer and reverse the # 198 becomes 891
Add that # to the substraction result:
891 + 198 = 1089
For a 3 digit # the answer will always be 1089.
Pick a 3 digit # (digits must be different ie. 123 or 456)
Reverse that # (123 become 321)
Substract the smaller # from the larger (321 - 123 = 198)
Take the answer and reverse the # 198 becomes 891
Add that # to the substraction result:
891 + 198 = 1089
For a 3 digit # the answer will always be 1089.