来小商店玩一玩!Let's play shop!

钱币Money

1. 1

   4.1.2

   说一说钱币的价值Saying money values

   快来了Coming soon
2. 2

   4.1.3

   换一换钱币Exchanging money

   练习看看Try it
3. 3

   4.3.1

   解决钱币问题Money problems

   快来了Coming soon