Minus or plus

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导读：We like math!　　Minus or plus!　　Math is so much fun for us!　　One plus one is two.　　Two plus two is four.　　Four plus four is eight.　　You re clever!　　You re great!　　We like math!　　Minus or plus!　　Math is so much fun for us!　　Two minus one is one.　　Four minus two is two.　　Eight minus four is four.　　And you can do more!　　We like math!　　minus or plus!　　Math is so much fun for us!