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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. ~~~
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  • 123 Addition, Practice included, , + personal order

    Arithmetic Addition (+) on Mathematics :123 Easy Teaching , practice included Click here
    Price TWD 300 Special Offer TWD 100

    Special Offer ≅ 3.5 USD ( 70% off , 1 USD ≅ 30 TWD )

    Professor Lin, Mathematics Department, National Taiwan University
    ⦁ Professor Huang, Applied Math Department, National Dong Hwa University
    ⦁ Professor Fu, Applied Math Department, National Chiao Tung University
    and...recommend.

    Welcome the group order, there is a special price ≅ 0.5 USD.

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


  • 123 Subtraction ,practice included − Personal order

    Arithmetic Subtraction on Mathematics Click here
    Price TWD 300 Special Offer TWD 100

    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


  • 123 MULTIPLICATION × , Practice included, Personal order

    123 Multiplication × Click here
    Price TWD 300 Special Offer TWD 100

    Special Offer ≅ 3.5 USD ( 70% off , 1 USD ≅ 30 TWD )
    Welcome the group order, there will be different prices.
    There is a special price ≅ 0.5 USD.

    Not to recite the(9x9 or 12x12) multiplication is "unfortunate".
    Fields Prize Winner, Qiu Chengtong.
    Let kids think math is fun.


  • 123 Division ,÷, Practice included, Personal order

    Arithmetic Division on Mathematics Amazon Click here
    Price TWD 300 Special Offer TWD 100

    Special Offer ≅ 3.5 USD (70% off , 1 USD ≅ 30 TWD )

    The creation of 123 Easy Teaching would not have been possible without the invaluable advice from established educators in the field. I would like to specially thank the following individuals for their approval:
    ⦁ Professor Lin, Mathematics Department, National Taiwan University
    ⦁ Professor Huang, Applied Math Department, National Dong Hwa University
    ⦁ Professor Fu, Applied Math Department, National Chiao Tung University