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  4. 123 Easy Teaching Subtraction (−) : Let kids systematically understand the numbers, and cultivate the kid's sense of number.

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. ~~~

Links:https://www.amazon.com/Arithmetic-Subtraction-Mathematics-12 ...

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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 ).




We wish that the children will be familiar with 123 Easy Teaching as same as they are familiar with the "multiplication table". They must be able to be skilled in basic arithmetic after reading 123 Easy Teaching repeatedly. Application on123 Easy Teaching, the children can quickly and intuitively say the answers, no need to use the fingers, 123 Easy Teaching can change the habit of calculation, the child is very intuitive to calculate, became the mental arithmetic.

Reading 123 Easy Teaching, like the effect of reading the "multiplication table", can definitely improve the children's arithmetic ability, and there is significant progress. If the child is proficient, the child can quickly learn basic arithmetic, so that the basic arithmetic can be calculated with the heart. After a short period of proficiency, the child can do operations more quickly and more accurate than the traditional calculation method, and get the answer without using fingers.

Subtraction
Subtraction between two numbers will result in a smaller number. As the subtracted number increases, the final result will become smaller and smaller. If you have to pass through 6 intersections on the way two school and you’ve already gone through two, then you still need to go through 4 more (6 – 2 = 4).

Let’s consider a tree with 8 apples. On the first day, you pick 5 apples, so only 3 apples remain (8 – 5 = 3). The following day you pick 2 more apples, so there is only 1 apple left (3 – 2 = 1). As the number of apples we pick increases, the number of apples remaining on the tree decreases. This is subtraction.

The trial version:

123 Subtraction (trial version) 123 © h.h.y.c. from 123merry , password:123merry


The trial version content requires a password.
Here is the password (no charge for trial version).
Welcome to download and use interactive features.


Click here to download 123 Subtraction trial version free.


password:123merry  



"下載" means "Download".

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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.








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3ac73197e4ddad6c299efcc5a772109d.png

f1eff02dfa1ef564b6322099abb11afe.png


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.

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

 

123  motion demo

Click here to continue your download.

Or, please download the following interactive pdf files on the site page. 

 

123merry part E.pdf



 PART1 of 123 
-

 

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2-1=1


3-1=2


4-1=3


5-1=4


6-1=5


7-1=6


8-1=7


9-1=8


10-1=9


11-1=10



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Please click to reach advance practice.




edd3f43d447f8b8e8d5f58a129504f99.jpg



Please click to reach review practice.

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0c70d2b198e84a26a07ea9a1751da2a4.png









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79e40900395383edf34767876ca7ad32.png




755b6c610bd2d7be9224c5257a85745b.png




3-2=1


4-2=2


5-2=3


6-2=4


7-2=5


8-2=6


9-2=7


10-2=8


11-2=9


12-2=10






d1483a04cac656ea7895d7912bf09700.jpg




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 ).

Welcome to click Subscriptions to Download interactive eBooks shopping cart to get the password you need to download. 
Let the children enjoy the fun of learning.


Please refer to

https://youtu.be/2y9cf3HBY24

or

Click here to Subscription Process youtube video.
Click here to watch the video of the shopping cart ordering process

or

Click here to graphic Subscription explanation.


Now, get your password and get interactive features.






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361f0bba241b0104692cc72656adc6ef.png




da6a717949399654be479588017ad1df.png




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d747dcacd299cd719153bc6124924921.png




c318b88085fca9a387580f2c25fce855.png





4-3=1


5-3=2


6-3=3


7-3=4


8-3=5


9-3=6


10-3=7


11-3=8


12-3=9


13-3=10





403f7fe77892e42a95f5f348986d00c5.png


c842c77ef995d85d157907ab3a5dc8d6.png




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9252e9f18e1851eee7046c0ccd59d44f.png




897b039b35e55b27bfe4808287711057.png






5-4=1


6-4=2


7-4=3


8-4=4


9-4=5


10-4=6


11-4=7


12-4=8


13-4=9


14-4=10





d1483a04cac656ea7895d7912bf09700.jpg




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 ).

Welcome to click Subscriptions to Download interactive eBooks shopping cart to get the password you need to download. 
Let the children enjoy the fun of learning.


Please refer to

https://youtu.be/2y9cf3HBY24

or

Click here to Subscription Process youtube video.
Click here to watch the video of the shopping cart ordering process

or

Click here to graphic Subscription explanation.


Now, get your password and get interactive features.

 



169a472decf89aa1b67b1cb064e9f4f7.jpg

dbf18d51d9abf645438cd21bd27b388d.jpg



d60cc1e4e439af61fdb375e581a40847.jpg





e5d5e2ede67207f7ed9c812d25bba4e8.png




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1529f31d428f10a119b2baf2cfd922a4.png5f00548c70ec1d57ebc0145215ea93bd.png







6-5=1


7-5=2


8-5=3


9-5=4


10-5=5


11-5=6


12-5=7


13-5=8


14-5=9


15-5=10








 

a8e335d1902ec45baab416f83ab94c10.jpg

dfb24bc3886c0b7306351e20e39710e9.png




3ac73197e4ddad6c299efcc5a772109d.png

f1eff02dfa1ef564b6322099abb11afe.png


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.

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.

Or, please download the following interactive pdf files on the site page. 





edcd0dc409b0a6e5e25085a8b53479a7.png




f65b3a20390802777f32ebce396433db.png




1ef99b181b831e3d53fb31313c4eacde.png




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5d5af15b2d1c99ac7b803ec2ff2eefd0.png




f9655bf1c5e73e69e3868e8b735efcab.png






7-6=1


8-6=2


9-6=3


10-6=4


11-6=5


12-6=6


13-6=6


14-6=8


15-6=9


16-6=10










45f64a5e028bd3f417f686c47aab7254.jpg


It is worthy of your likes and recommendations, guiding children into a happy paradise for learning arithmetic operations.

dfb24bc3886c0b7306351e20e39710e9.png




3ac73197e4ddad6c299efcc5a772109d.png

f1eff02dfa1ef564b6322099abb11afe.png

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.

123  motion demo

Click here to continue your download.

 

Or, please download the following interactive pdf files

4bfb9ab1ffc37f0b41516195520ffd70.jpg

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