Back 【解題】觀察 7 乘以 4 和 7 乘以 6 兩個算式中乘數的關係 登入觀看 ⇐ Use this menu to view and help create subtitles for this video in many different languages. You'll probably want to hide YouTube's captions if using these subtitles. 【解題】觀察 7 乘以 4 和 7 乘以 6 兩個算式中乘數的關係 上傳學習單 下載學習單