Lemma
MediumDigits
AQuA-RAT train #65380 · Number Theory · Digits

How many integers k greater than 100 and less than 1000 are…

How many integers k greater than 100 and less than 1000 are there such that if the hundreds and the unit digits of k are reversed, the resulting integer is k + 99?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #65380

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