​你能看到是什麼乘什麼嗎?

Screenshot%202021-01-15%20at%2010.33_edi
Screenshot 2021-01-15 at 10.36.55 AM.png

​對不起,不是這個

再試試吖。

Screenshot 2021-01-15 at 10.41.11 AM.png

​對了,那這個是等於多少?

Screenshot 2021-01-15 at 10.36.14 AM.png
Screenshot 2021-01-15 at 10.36.47 AM.png

​對不起,不是這個

​答對了!

Screenshot 2021-01-15 at 10.33.23 AM.png