Are you good at math?

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Fisrt of all,I must admit that I'm not very clever.When I were young,my grade of math was not execllent.When I went into university,I choosed library management but giving up math.In normal living life,I always make wrong when I buy somethings.My husband laugh at me often when I make wrong number.I have no idea about math.However,I found someone is very good at math.I admire them.Maybe you are.