Register NOW at https://mathleague.org/nschallengeregister.php?challenge=126N2 and JOIN us on Thursday nights for an hour to compete in #NumberSenseChallenge 126N2 (October-December 2025). Track your progress on the leaderboard and compete for prizes! More info: https://mathleague.org/nschallenge.php. #mathleague #numbersense


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