Lehrer Lämpel: Digit Squares
Math puzzles can be fun.
$0.99 · Designed for iPad. Not verified for macOS.
Also Included In
iPad
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.
Please consider leaving a review. This helps a lot. Thanks!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Support for Italian, minor UI improvements.
The developer, Claus Zinn, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Claus Zinn
- Size
- 5.2 MB
- Category
- Education
- Compatibility
Requires iPadOS 9.3 or later.
- iPad
Requires iPadOS 9.3 or later.
• iPad Air
• iPad Air Wi‑Fi + Cellular
• iPad mini 2
• iPad mini 2 Wi‑Fi + Cellular
• iPad Air 2
• iPad Air 2 Wi‑Fi + Cellular
• iPad mini 3
• iPad mini 3 Wi‑Fi + Cellular
• iPad mini 4
• iPad mini 4 Wi‑Fi + Cellular
• iPad Pro (12.9‑inch)
• iPad Pro (12.9‑inch) Wi-Fi + Cellular
• iPad Pro (9.7‑inch)
• iPad Pro (9.7‑inch) Wi‑Fi + Cellular
• iPad (5th generation)
• iPad (5th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (2nd generation)
• iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (10.5‑inch)
• iPad Pro (10.5‑inch) Wi‑Fi + Cellular
• iPad (6th generation)
• iPad (6th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch)
• iPad Pro (11‑inch) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (3rd generation)
• iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular
• iPad mini (5th generation)
• iPad mini (5th generation) Wi‑Fi + Cellular
• iPad Air (3rd generation)
• iPad Air (3rd generation) Wi‑Fi + Cellular
• iPad (7th generation)
• iPad (7th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (2nd generation)
• iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (4th generation)
• iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Air (4th generation)
• iPad Air (4th generation) Wi‑Fi + Cellular
• iPad (8th generation)
• iPad (8th generation) Wi‑Fi + Cellular
• iPad Pro (11-inch) (3rd generation)
• iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular
• iPad Pro (12.9-inch) (5th generation)
• iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular
• iPad mini (6th generation)
• iPad mini (6th generation) Wi-Fi + Cellular
• iPad (9th generation)
• iPad (9th generation) Wi-Fi + Cellular
• iPad Air (5th generation)
• iPad Air (5th generation) Wi‑Fi + Cellular
• iPad (10th generation)
• iPad (10th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (4th generation)
• iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (6th generation)
• iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular
• iPad Air 11-inch (M2)
• iPad Air 11-inch (M2) Wi-Fi + Cellular
• iPad Air 13-inch (M2)
• iPad Air 13-inch (M2) Wi-Fi + Cellular
• iPad Pro 11-inch (M4)
• iPad Pro 11-inch (M4) Wi-Fi + Cellular
• iPad Pro 13-inch (M4)
• iPad Pro 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A17 Pro)
• iPad mini (A17 Pro) Wi-Fi + Cellular
• iPad (A16)
• iPad (A16) Wi-Fi + Cellular
• iPad Air 11-inch (M3)
• iPad Air 11-inch (M3) Wi-Fi + Cellular
• iPad Air 13-inch (M3)
• iPad Air 13-inch (M3) Wi-Fi + Cellular
• iPad Pro 11-inch (M5)
• iPad Pro 11-inch (M5) Wi-Fi + Cellular
• iPad Pro 13-inch (M5)
• iPad Pro 13-inch (M5) Wi-Fi + Cellular
• iPad Air 11-inch (M4)
• iPad Air 11-inch (M4) Wi-Fi + Cellular
• iPad Air 13-inch (M4)
• iPad Air 13-inch (M4) Wi-Fi + Cellular - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- iPad
- Languages
English and 3 more
- English, French, German, Italian
- Age Rating
4+
- 4+
- Made for Ages 9–11
- Copyright
- © Claus Zinn
