Trade-First Subtraction Читы

Trade-First Subtraction Взлом 6.5 + Чит Коды

Разработчик: Esa Helttula
Категория: Образование
Цена: 349,00 ₽ (Скачать бесплатно)
Версия: 6.5
ID: com.idevbooks.tradefirsts

Скриншоты

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Описание

This app can be used to teach and study the trade-first subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user can solve random subtraction problems with small and large numbers. The number of digits in the numbers can be set.

Endorsed by Teachers

Rita Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada:

"The math apps by Esa Helttula allow students to practice and reinforce the specific computation strategies taught in class, with as much or as little scaffolding as necessary.
They also provide individualized feedback to each student, with an immediacy that is not always possible through pencil and paper practice. Being able to adjust the level of difficulty to suit their needs is also very motivating for the students. I am so glad to have come across this great educational tool!"

The Trade-First Method

The trade-first subtraction method is similar to the traditional column subtraction method. The method has two stages. All of the "trading" or "borrowing" is done first. Then the subtractions are solved. This gives the method it's name, "trade-first."

In the Everyday Mathematics curriculum the trade-first method is the focus algorithm for subtraction.

The App is Easy to Use

The numbers are aligned automatically so that you can concentrate on solving the operations for each column.

Borrowing is animated step by step so you can see what happens. Borrowing over several columns is also supported.

After you solve the operation for each column the correct answer will fly to the right place. If the user presses the wrong button the answer will appear above the keyboard but it will not move.

Features:

- Each number can have from 2 to 5 digits
- Problems can be custom or random
- The current operation for each column can be hidden
- The operands of the current operation can be highlighted
- Colors of the interface can be changed
- The speed of the animations can be set
- The lines separating the columns can be hidden

Other iDevBooks math apps

iDevBooks math apps have been reviewed and endorsed by Wired.com, IEAR.org, Edudemic.com, Teachers with Apps, and other respected sites and organizations.

Some of the other 40 iDevBooks math apps are Column Addition, Long Multiplication, Long Division, Column Subtraction, Visual Multiplication Table, Partial Differences Subtraction, Partial Products Multiplication, Partial Sums Addition, Decimal Rounding, etc.

Feedback and requests for new features

New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback.

Privacy

This app has no ads or in-app purchases and it does not transmit any data during the operation of the app. This app also does not contain any links to other apps or the web.

История обновлений

6.5
2021-10-03
- support for iOS 15
6.0
2019-10-03
- support for iOS 13
- new interface with support for latest iPad and iPhone models
- new theme colors
5.2
2018-11-14
- support for iOS 12
- support for iPhone Xr and Xs Max
- minor bug fixes
5.1
2018-03-26
- support for iOS 11
- support for iPhone X
5.0
2017-02-15
- open worksheets from app (new worksheets can be made on the iDevBooks.com site)
- support for iOS 10.0
- support for shared iPad in school environments

For more information about worksheets and other new features of this version please visit idevbooks.com. Please also get in contact if you have any feedback or you want information about 32 iDevBooks math apps.
4.1
2016-09-13
- support for iOS 10

Please visit iDevBooks.com if you have any feedback or you want information about over 30 iDevBooks math apps.
4.0
2016-04-09
- support for iOS 9.3

Please visit iDevBooks.com if you have any feedback or you want information about 26 iDevBooks math apps.
3.0
2014-09-12
- minor interface changes
- new icon
2.4
2014-04-05
Interface updates for iOS 7.

Please visit http://idevbooks.com if you have questions or feedback about any of the 26 iDevBooks math apps.
2.3
2013-07-31
-Trading across more than two zeros did not work in all cases.

If you have any feedback please visit idevbooks.com. There are now 24 iDevBooks math apps.
2.2
2013-06-20
-The web link to support pages has been removed to prevent users from accidentally launching the browser.
-There are also some minor interface changes.

If you have any feedback please visit idevbooks.com. There are now 24 iDevBooks math apps.
2.1
2012-10-14
Support for iPhone 5 and iOS 6.

Please visit idevbooks.com if you have feedback.
2.0
2012-02-09
- The app is now universal and it has custom interfaces for iPhone and iPad
- On the iPad the app can be used in portrait or landscape orientation
- Please give feedback and get information about 18 other math apps by visiting http://idevbooks.com
1.4
2011-12-08
Bug fix: Sometimes the numbers became dim after setting a new problem.
1.3
2011-01-18
- You can now solve custom and random problems
- Support for fast app switching in iOS 4
- New icon
- Some minor interface changes
1.2
2010-06-09
- Minor bug fixes
- The app has been translated also into French

If you have any questions, requests for new features or would like to see my 17 other math apps please visit http://idevbooks.com
1.1
2010-02-05
No serious bugs have been found or reported. Some minor issues with settings panel and animations have changed:

-The preview of the settings did not work correctly when the number of digits was changed.
-The next operands are now highlighted only when the animations have ended

Thank you for using this app. Please also see my other apps for division, multiplication, addition and subtraction. Please contact me if you have any questions or suggestions.
1.0
2010-01-26

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