6.5
2021-09-26
- support for iOS 15
6.1
2021-03-16
- support for iOS 14
6.0
2019-09-30
- support for iOS 13
- new interface with support for latest iPad and iPhone models
- new theme colors
5.2
2018-11-10
- support for iOS 12
- support for iPhone Xr and Xs Max
- minor bug fixes
5.1
2018-03-20
- suport for iPhone X
- support for iOS 11
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.
4.3
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.
4.2
2015-10-23
- support for iOS9
- fixes a bug where the keyboard was not visible if the app was started on an iPad in landscape mode
4.0
2015-08-31
- support for decimal numbers
- changes the way regrouped digits are lined up
If you have questions or ideas about this app or any other of the 26 iDevBooks math apps, please visit idevbooks.com and use the contact form.
3.0
2014-09-13
- minor interface changes
- new icon
2.7
2014-04-05
- fixes a problem that sometimes occurred with regrouping
- minor interface changes
Please visit http://idevbooks.com if you have questions or feedback about any of the 26 iDevBooks math apps.
2.6
2013-09-17
Interface updates for iOS 7.
If you have any feedback please visit idevbooks.com. There are now 24 iDevBooks math apps.
2.5
2013-05-28
-The settings preview on iPhone now works also when the lower number had 4 digits.
-The iPhone version has the same sepia theme as the iPad version.
-The web link to support pages has been removed to prevent users from accidentally launching the browser.
If you have any feedback please visit idevbooks.com. There are now 24 iDevBooks math apps.
2.4
2012-11-10
The lower number can now have up to 4 digits instead of 1 or 2. This means that you can now multiply a 5 digit number by a 4 digit number.
This update was requested by a teacher. Please visit idevbooks.com or send email to
[email protected] if you have any feedback, requests for new features, or questions.
iDevBooks also has 20 other math apps on the App Store.
2.3
2012-10-05
In some cases the keyboard would be invisible on an iPad with iOS 6.
In version 2.2:
-Support for the taller screen in iPhone 5.
-Retina graphics
Please visit http://idevbooks.com if you have any questions or feedback or if you would like to see all 20 iDevBooks math apps.
2.2
2012-09-25
-Support for the taller screen in iPhone 5.
-Retina graphics
Please visit http://idevbooks.com if you have any questions or feedback or if you would like to see all 20 iDevBooks math apps.
2.1
2011-11-17
- Bug fix: In some older iOS versions the keyboard did not work on iPhones after changing the settings.
In version 2.0:
- 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
- Some minor bugs on iPhone / iPod Touch have been fixed
- Please give feedback and get information about 18 other math apps by visiting http://idevbooks.com
2.0
2011-11-10
- 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
- Some minor bugs on iPhone / iPod Touch have been fixed
- Please give feedback and get information about 18 other math apps by visiting http://idevbooks.com
1.6
2011-08-03
Version 1.6: Minor interface changes.
Version 1.5: The user can now choose where regrouping happens. Previously regrouping happened below the equations. Now it can happen either below or above equations.
The new option was requested by a teacher. If you have any questions, requests for new features or would like to see my 18 other math apps please visit http://idevbooks.com
1.5
2010-11-02
The user can now choose where regrouping happens. Previously regrouping happened below the equations. Now it can happen either below or above equations.
The new option was requested by a teacher. If you have any questions, requests for new features or would like to see my 17 other math apps please visit http://idevbooks.com
1.4
2010-10-16
Minor interface changes and bug fixes.
If you have any questions, requests for new features or would like to see my 17 other math apps please visit http://idevbooks.com
1.3
2010-07-30
-You can now also set your own problems
-The app supports fast app switching in iOS4
-Both numbers can have only one digit
-Some minor bug fixes
1.2
2010-01-06
New features:
- The speed of the animations can be set
- All settings are saved when you exit the app
- The operands for the current operation can be highlighted
- There are 3 different themes