Gauss once said: "mathematics is the queen of science, and number theory is the queen of mathematics", people of that era therefore called gauss "the prince of mathematics".

In an interview, Qiu Chengtong, winner of the Fields prize, the highest honor in the world of mathematics, and a scholar of academia sinensis, pointed out that Mathematics should be taught according to aptitude, and both memory and reasoning should be taken into account. It is a kind of "unfortunate" not to recite mathematics of nine-nine multiplication; If you don't use the method of multiplication table you can only have one number and one number and you don't have a complete concept of multiplication.

He said, well, for example,if I have 2 times 10, and I have to add 10 times each time, how can I get to the next level of math? after 40 years of studying mathematics, he still has to learn some things by heart.

More found on 123merry Advance Concepts

or Click 123merry Advance Concepts here, please.

Click here to continue interactive features demo on youtube.

https://youtu.be/3ZcJpUYHGH8

The "Subscriptions to Download interactive eBooks " is accompanied by files that can be downloaded ( after shopping cart ordering process ).

Notice that the equation is changed interactively when the cursor was moved closely.

Because the fixed graphics JPG files were posted on site, so there is no interactive effect on site.

If you want to experience dynamic teaching effects, please download the interactive pdf file, welcome to download and get the interactive functions. After downloading, experience the new learning method, interactive learning on PC.

Currently, because the (amazon) e-book readers are temporarily unable to get interactive function on the e-book readers.

Please download the following interactive pdf files on the site. Welcome to experience the interactive teaching and share 123 site to more people to increase the fun of learning.

Click here to continue interactive features demo 1 on youtube.

https://youtu.be/0JVufaSat7k

Click here to continue interactive features demo 2 on youtube.

https://youtu.be/3ZcJpUYHGH8

Click here to continue your download.

6÷1＝6

12÷2＝6

18÷3＝6

24÷4＝6

30÷5＝6

36÷6＝6

42÷7＝6

48÷8＝6

54÷9＝6

60÷10＝6

7÷1＝7

14÷2＝7

21÷3＝7

28÷4＝7

35÷5＝7

42÷6＝7

49÷7＝7

56÷8＝7

63÷9＝7

70÷10＝7

8÷1＝8

16÷2＝8

24÷3＝8

32÷4＝8

40÷5＝8

48÷6＝8

56÷7＝8

64÷8＝8

72÷9＝8

80÷10＝8

9÷1＝9

18÷2＝9

27÷3＝9

36÷4＝9

45÷5＝9

54÷6＝9

63÷7＝9

72÷8＝9

81÷9＝9

90÷10＝9

10÷1＝10

20÷2＝10

30÷3＝10

40÷4＝10

50÷5＝10

60÷6＝10

70÷7＝10

80÷8＝10

90÷9＝10

“Early childhood education is the most critical stage of learning; a poor early start will have lasting effects on later development. In my own personal experience, I have found that students often have the most trouble with mathematics. It is truly a shame that many students often give up on math due to falsely perceived difficulty. Teacher Huang's innovative new work, 123 Easy Teaching, is the result of many years of teaching experience. This book series addresses the needs of youth education and eliminates the difficulties and bottlenecks frequently encountered during the elementary learning process. This allows children to gain confidence in their mathematic abilities, furthermore, it allows them to learn happily without struggle. These books are vital to providing a solid arithmetic foundation for children.”

Zhang Huatang, President of Hukou Senior High School

Learning and memory are inseparable.When learning, the synapses between the neurons in the brain will become tighter and tighter, and a lot of energy will be consumed in the process, and the attention will be reduced. It will be better to take a break of 10 minutes after 20 minutes of study.

Motion on equations and click site to get motion learning

No data input required.

Notice that the equation is changed interactively when the cursor was moved closely.

Because the fixed graphics JPG files were posted on site, so there is no interactive effect on site.

If you want to experience dynamic teaching effects, please download the interactive pdf file, welcome to download and get the interactive functions. After downloading, experience the new learning method, interactive learning on PC. The computers with larger screens, such as notebook computers are suggested. Smart phones do not support the interactive functions.

Currently, because the (amazon) e-book readers are temporarily unable to get interactive function on the e-book readers.

If you want to have interactive features, please download the following interactive pdf files on the site. Welcome to experience the interactive teaching and share 123 site to more people to increase the fun of learning.

123 motion demo

Click here to continue your download.

"下載" means "Download".

After receiving the e-book password, log in with your password and you can read 123 with interactive functions offline.

The e-books provided by the website are interactive. All are interactive pdf files. If the e-books linked and downloaded, the e-books can produce good learning effects and enhance Children learning fun.

Children will have more vivid reactions and like this kind of interactive learning.

If you want Children to get the best learning, the e-book linked and downloaded is a must, must be linked to download.

While learning, the children practice and say the answer. They get a deep impression on the answer after understanding, and it is very suitable for children's learning.

It's not only fun, lively, but more important, it can be learned quickly and effectively. Enhancing the children's willingness to learn to enhance the learning. If the children learn in this way, they can greatly improve their computing power and greatly increase their computing power. Computational power is the foundation of mathematics, the children learn in this way to be superior in computing power. Having superior computing power is the first step in superior mathematics.

Children will have more vivid reactions and like this kind of interactive learning.

If you want Children to get the best learning, the e-book linked and downloaded is a must, must be linked to download.

After downloading the trial version, confirm that you can have interactive features on your device. Then you can download the subscription version and get interactive features.

Gauss one of the greatest mathematicians, said : "Mathematics is the queen of the sciences and number theory is the queen of mathematics."

More importantly, children's learning opportunities should not be missed. A good opportunity to cultivate children's mathematics ability, the good mathematics ability will increase confidence in other subjects.

If you want Children to get the best learning, the e-book linked and downloaded is a must, must be linked to download.

The "Subscriptions to Download eBooks" is accompanied by some subscription files that can be downloaded ( after ordering ).

Basically, Personal Subscription (each of addition, subtraction or multiplication and division) is Price TWD 300 (USD 10) at a Special Offer TWD 180 (USD 6) . However, if it is a Collective Subscription, the unit price will be less, according to the number of people, there will be different unit price charges. The more the number of people, the lower the unit price, the more favorable.

Unit price for Collective Subscription :

Special Offer TWD 150 (USD 5 approximatedly) Mini order : 2

Special Offer TWD 120 (USD 4 approximatedly) Mini order : 8

Special Offer TWD 90 (USD 3 approximatedly) Mini order : 16

Special Offer TWD 60 (USD 2 approximatedly) Mini order : 68