Lemma
MediumDigits
AQuA-RAT train #40572 · Number Theory · Digits

If a is a positive integer, and if the units' digit of…

If a is a positive integer, and if the units' digit of a^2 is 4 and the units' digit of (a + 1)^2 is 1, what is the units' digit of (a + 2)^2 ?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #40572

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