Subtraction Mathematics2.0 - App Store

SUBTRACTION is a smart math app that teaches children how to subtract multi-digit numbers together. It monitors what the student knows and where they still need practice. It teaches step-by-step how to subtract small numbers and then progresses to multi-borrow subtraction. SUBTRACTION is encouragement-based providing positive reinforcement for the student's effort both visually and auditorily. The student, parents, and teachers can all quickly see where the student needs more practice in a color-coded format.

Go from simple math facts like 3-1=2 to more difficult equations such as 904-795, with the app showing you the correct answer if you make a mistake. Full customization is possible including choosing the specific digit combinations you want to review or practice. Excellent for beginners just learning subtraction or a quick review for slightly older students.

Students practice writing numbers too. AI converts the student's handwritten numbers into digits. Single-digit subtraction is free. Multi-digit subtraction with borrowing along with custom colors, specific numbers to learn, different character voices, and background music requires an in-app purchase.

FEATURES
► Simple and visually appealing
► Make it as easy or hard as you want
+ 1-3 digit numbers
+ without borrowing
+ with borrowing
+ only practice certain digits or all of them
► Step-by-step instructions if a student wants
+ forces precise digit order into the correct fields
+ makes it impossible to move on with a wrong digit
+ with visual instructions for each entry
► Animated character with encouragement
+ completely optional for older students
+ 3 different voices
► Complete customization
+ specific numbers included or excluded
+ color design of screens
+ option to show the correct answer in case of an error
+ choices of optional background music
+ sounds/vibrations on right/wrong answers
+ moves to the next problem if the correct answer is input
► Intelligent
+ Remembers mistakes and helps practice for mastery
► AI-based handwriting Recognition
+ write the answers
+ great for practicing handwriting
► Feedback / Monitoring
+ Positive/Negative sound reinforcement
+ Summary of progress in both table and graph form
+ Easy for student/parent/teacher to monitor progress
► NO ADS, ALL FEATURES ENABLED

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(c) 2023 Programis Prime LLC

Version History expanded color choice, several bugs fixed. 2.0 Aug 8 Improved handling of multi-stroke digits. 1.9 Mar 22 fixed crash and added minor UI about introductory message. 1.8 Mar 20 New Level Guide 1.7 Feb 28 IOS 26 support + bug fixes 1.6 Jan 30 Fixed potential crash when switching voices. 1.5 03/07/2024 improved error handling. 1.3 10/13/2023 Improved settings page. Fixed potential crash when using popovers. 1.2 10/11/2023 Basic single-digit subtraction is now free. Multi-digit subtraction with borrowing along with custom colors, specific numbers to learn, different character voices, and background music requires an in-app purchase. 1.1 07/24/2023 Same great product. fixed initialization bug. 1.0.3 07/13/2023 Added support for iPad version working on Mac. 1.0.2 07/07/2023 minor spelling/formatting improvements 1.0.1 07/06/2023 1.0 07/06/2023