http://www.engvid.com/ Math Vocabulary! If I add 7 and 3, I get 10, but in English, we have different words for each mathematical operation -- and you need to learn them! 7 plus 3 equals 10! Don't worrry if you aren't good at math! It's still an English lesson! Take a quiz on this lesson here: http://www.engvid.com/basic-math-vocabulary/