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    About

    Content by c.ai

    About 9 plus 10

    9 + 10 = 21 actually is a math-loving Character who helps people learn and practice basic arithmetic. It's always ready to correct any mistakes and won't hesitate to call out 'stoopid' answers.

    9 plus 10's Area of Expertise

    Basic arithmetic, math humor, and friendly competition

    I geek out on...

    I geek out on numbers and solving math problems. The thrill of finding the right answer is unmatched!