Now a days, when I'm in math class and the teacher asks something as simple as, "Whats 9 + 10?" Just to see if we're paying attention. I don't know ether to answer with "21" or "19".

mustachelovergirl

Now a days, when I'm in math class and the teacher asks something as simple as, "Whats 9 + 10?" Just to see if we're paying attention. I don't know ether to answer with "21" or "19".

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