123 Subtraction ,practice included − Personal order3

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, PERSONAL ORDER 123 Subtraction ,practice included − Personal order

123 Subtraction ,practice included − Personal order

Arithmetic Subtraction on Mathematics Click here

Special Offer ≅ 3.5USD ( 70% off , 1 USD ≅ 30 TWD )
Welcome the group order, there will be different prices.

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

Price TWD 300 Special Offer TWD 100

Welcome the group order,  there will be different prices. 

Here is a free trial version. 

The learning of addition practice is a necessary foundation for students to get started.

Please feel free to 
Click here to download 123 Addition (trial version) free.

The content requires a password.


Free to try it for 30 days (1 months). 

Only for you, you decide whether to pay or not.

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Personal order :

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1234 SUB 123 motion-123 © h.h.y.c. 12345101

The PDF has been secured with 128-bit AES encryption. Without the password, it won't be able to be opened. Please get and remember the password.




    for  Personal order

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..


© 2018 Huang Yu Chih. All rights reserved.

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