Lehrer Lämpel: Digit Squares1.4 - App Store
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Publisher Description
Digit Squares supports primary school children to practise their skills in basic arithmetic: addition, subtraction, multiplication and division.
The learner is given a square of nine fields, with some fields already filled with some digits. Each row and column points to its "result number". The task is to fill-out the empty fields ! There are three simple rules:
- all digits from 1-9 must be used to fill the 9 fields.
- no digit can be used twice.
- all sums and products must be correct.
The app is built-upon a state-of-the-art algorithm for diagnosing all student action and for providing targeted, situation-adaptive help.
Pupils can ask Lehrer Lämpel for help at any time. A hint mechanism guides learners towards the next step, or points them to the source of the error.
The app offers the choice between PLUS and PRODUCT puzzles; the first option trains learners' addition and subtraction skills; the second option trains learners' skills in multiplication and division.
The app supports a large number of randomised exercises (all combinations to place the digits from 0-9 on a playground of 9 fields), and three levels of difficulty.
Optionally, a voice-over is available (male and female voice in English and French; female voice for German) that reads-aloud all help.
Supports English, French and German.
Available on the iPad, for iOS9 or later.
The app is ad-free. No data is being collected. No web access is required.
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Version History Support for Italian, minor UI improvements. 1.4 May 13 This is a maintenance release. 1.3.1 02/21/2023 - Improved feedback (add variation to feedback)
- Minor design improvements 1.3 11/19/2019 Now gives better feedback to signal correct or incorrect steps, or when square is solved.
Now with system sound to signal square has been solved. 1.2 12/28/2018 Now also supports iOS9.
Now supports Retina display.
Improved design. 1.1 11/12/2015 1.0 01/03/2015
About Lehrer Lämpel: Digit Squares
The company that develops Lehrer Lämpel: Digit Squares is Claus Zinn. The latest version released by its developer is 1.4.
To install Lehrer Lämpel: Digit Squares on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Lehrer Lämpel: Digit Squares as malware if the download link is broken.
How to install Lehrer Lämpel: Digit Squares on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Lehrer Lämpel: Digit Squares is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Lehrer Lämpel: Digit Squares is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.4
posted on 2026-10-15
Version History Support for Italian, minor UI improvements. 1.4 May 13 This is a maintenance release. 1.3.1 02/21/2023 - Improved feedback (add variation to feedback)
- Minor design improvements 1.3 11/19/2019 Now gives better feedback to signal correct or incorrect steps, or when square is solved.
Now with system sound to signal square has been solved. 1.2 12/28/2018 Now also supports iOS9.
Now supports Retina display.
Improved design. 1.1 11/12/2015 1.0 01/03/2015
version 1.3.1
posted on 2023-02-21
This is a maintenance release.
version 1.3.1
posted on 2023-02-21
Feb 21, 2023
Version 1.3.1
This is a maintenance release.
version 1.3
posted on 2019-11-19
19 Nov 2019 Version 1.3
- Improved feedback (add variation to feedback)
- Minor design improvements
version 1.3
posted on 2019-11-19
Nov 19, 2019 Version 1.3
- Improved feedback (add variation to feedback)
- Minor design improvements
version 1.1
posted on 2015-01-04
version 1.3
posted on 1970-01-01
2019年11月19日 Version 1.3
- Improved feedback (add variation to feedback)
- Minor design improvements
Disclaimer
Official App Store Link
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