123 − Subtraction, Practice included, Collective order ( Mini order: 16 )3

Collective order: Welcome group orders and use by the group. Please respect the author's intellectual property rights, and use the content of 123 Easy Teaching reasonably. ~~~ ~~~ 團購: 歡迎集體訂購使用.請尊重作者擁有智慧財產權, 合理的使用著作內容. ~~~
Home Subscription to Download Interactive e-book 123 Collective order ( Mini order: 16 ) 123 − Subtraction, Practice included, Collective order ( Mini order: 16 )

123 − Subtraction, Practice included, Collective order ( Mini order: 16 )

123 ( − ) Click here

Special Offer ≅ 0.4 USD ( 94% off , 1 USD ≅ 30 TWD )

This book succeeds in using cute illustrations to draw children into the beautiful world of math. It allows children to personally reason about numbers and realize the relationship between them, similar to how the keys of a piano come together to make a melody. I believe that this way of learning will provide lifelong benefits to the children. I think this book is strongly worth recommending and for parents and their children to read along together.
Professor Lin Tai-Chia, National Taiwan University

USD 3 approximatedly ( 1 USD ≅ 30 TWD, 3 USD ≅ 90 TWD)

Price TWD 300 Special Offer TWD 12

How do I subscribe to 123 ?

Subscription process:

Fill out the subscription form and complete the subscription request. When ordering, please be sure to leave an email address that the system can notify you the password. The order system will send an email (payment notification with a password) to your email address as soon as the payment is completed.

Download the interactive e-book files on this website page (find the files as follows)

123 123 123 123 123 123   123 123 123 123 123 123 

Collective order :

Download the interactive e-book files.

Click here to continue your download.         

After completing Subscription to Interactive e-book, please come back here
,you can log in with your password to download and save the 123 file.




for  Collective order

When I open the pdf file, there will be Chinese characters"請輸入密碼". What does it mean? What do I do?

"請輸入密碼" said that "please enter the password", just enter the password, you can open the file.

How do I get the password for the PDF e-book file?

Once the payment is complete, the order system will immediately send a ( payment confirmation ) password notification email to your email address.

If you receive the payment confirmation, look down, there will be an attached file below the letter, and then look at the red box content, password is in it, as shown

Please refer to


Click here to Subscription Process youtube video.

Click here to graphic Subscription explanation

Can I order eBooks on Amazon?

It depends on where you are. If you are in the United Kingdom, the United States, India,... etc., you can order 123 on Amazon.
However, currently because the (amazon) e-book readers are temporarily unable to get interactive function on the e-book readers. 

123 Collective order ( Mini order: 16 ) 1215853