Subtraction减法
        
          minus减  equals等于
        Let's learn subtraction. 我们来学减法。
          Say it out loud.大声读。
          10 - 4 = 6
          Ten minus four equals six.
          5 - 3 = 2
          Five minus three equals two.
        Let's guess.我们来猜猜看。
          5 - ? = 1
          Five minus what equals one? 5减多少等于1?
          I know, I know.我知道,我知道。
          O.K. Johnny? 好,约翰尼来回答?
          4, 5 - 4 = 1
          Very good。太棒了。
        10 - 4 = ?
          ten minus four equals what?
          I know, I know.
          O.K. Amy?
          6, 10 - 4 = 6
          Very Good.