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Omni-MATH / Let A₁₂ denote the answer to problem 12. There exists a unique triple of digits (B,C,D) such that 10>A₁₂>B>C>D>0 and (A₁₂BCD)¯−(DCBA₁₂)¯=(BDA₁₂C)¯ where (A₁₂BCD)¯ denotes the four … · Discussion

Discussing Let A₁₂ denote the answer to problem 12. There exists a unique triple of digits (B,C,D) such that 10>A₁₂>B>C>D>0 and (A₁₂BCD)¯−(DCBA₁₂)¯=(BDA₁₂C)¯ where (A₁₂BCD)¯ denotes the four … · Omni-MATH

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