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  1. Can you solve this problem that most American can answer? #hardmathproblem #orisit #mathcompetition

    Can you solve this problem that most American can answer? #hardmathproblem #orisit #mathcompetition

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  2. Unlock the Power of Scientific Notation: Mastering Big Numbers in a Minute!

    Unlock the Power of Scientific Notation: Mastering Big Numbers in a Minute!

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