# Teachley: Subtractimals EDU — Rich subtraction scaffolds > Educational subtraction game for K-2nd grade, focusing on strategies and conceptual understanding. (iPhone/iPad app by Teachley.) - Source: https://appshunter.io/ios/app/teachley-subtractimals-edu/id1135553563 (this page in markdown: same URL + `.md`) - Developer: [Teachley](https://appshunter.io/developer/661286976) - Category: Education, Games, Strategy - Price: Free - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 8.0 · 36 MB - Languages: American English - Released: 2016-09-07 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/teachley-subtractimals-edu/id1135553563/reviews.md ## What is Teachley? *Use your premium Teachley account login to unlock the app.* The sinister Professor Possum makes his return in Subtractimals. In this follow-up app to Addimals, students use subtraction strategies to help Memo, Patooey, and her cousin, Slurp stop his latest evil plan. Subtractimals EDU is the school version of an engaging game that teaches subtraction. The characters once again model strategies that children use to practice solving subtraction problems. Most fluency apps use drill-based approaches, such as digital worksheets, flashcards, and multiple choice. In contrast, Subtractimals focuses on teaching effective math strategies and scaffolds learning to promote conceptual understanding and fact fluency. Designed to support Response to Intervention programs, this app is a great tool for teachers looking to differentiate instruction for students. What are teachers saying? "Subtractimals builds on Addimal Adventure by providing kids with important strategies for learning subtraction. Our students love playing Teachley's apps and have greatly enhanced their addition and multiplication skills. We cannot wait to start using Subtractimals too!" - Cathy W., K-4 Instructional Technology Coordinator "Teachley's new app, Subtractimals is the perfect follow on to Addimal Adventure! This new subtraction app encourages the same deep mathematical thinking and grows with each student while guiding them in the process of subtraction." - Mauri Dufour, Kindergarten teacher and Apple Distinguished Educator Addresses many K-2nd grade Common Core Math Standards, including -K.OA.A.1 -K.OA.A.2 -K.OA.A.5 -K.NBT.A.1 -1.OA.A.1 -1.OA.B.3 -1.OA.B.4 -1.OA.C.5 -1.OA.C.6 -1.NBT.B.2 -2.OA.B.2 About Teachley: Teachley, LLC is an award-winning edtech company founded by expert teachers with PhDs in cognitive science and funded by the U.S. Department of Education and National Science Foundation. Teachley is transforming teaching and learning by using app data to help schools and districts drive instruction and target interventions. Based on cognitive science research, Teachley’s apps focus on teaching important strategies shown to improve learning within fun and engaging games. www.teachley.com *This app was made possible by the U.S. Department of Education, with funding provided by the Institute of Education Sciences’ SBIR program. ## Key features - Engaging subtraction strategies - Conceptual understanding focus - Fact fluency development - Supports intervention programs - Differentiates instruction - Addresses Common Core Math Standards ## Frequently asked questions about Teachley ### What is Teachley: Subtractimals EDU? Teachley: Subtractimals EDU is a free educational game designed to teach subtraction strategies to students in kindergarten through 2nd grade. It focuses on conceptual understanding and fact fluency through engaging gameplay. ### What age range is Teachley: Subtractimals EDU for? The app is rated for ages 4+ and is designed to support K-2nd grade Common Core Math Standards, making it suitable for young elementary school students. ### Does Teachley: Subtractimals EDU have ads? No, Teachley: Subtractimals EDU is ad-free, providing an uninterrupted learning experience for children. ### What learning methodology does Teachley: Subtractimals EDU use? Unlike drill-based apps, Subtractimals focuses on teaching effective math strategies and scaffolds learning to promote conceptual understanding and fact fluency. This approach is based on cognitive science research. ### How does Teachley: Subtractimals EDU track student progress? While specific progress tracking features are not detailed, the app is developed by Teachley, an edtech company that uses app data to help schools and districts drive instruction and target interventions. ### Is Teachley: Subtractimals EDU available on multiple devices? Based on the provided data, the app is currently supported on iPads. Information about availability on other platforms like Android is not specified. ### How often is Teachley: Subtractimals EDU updated? The app was last updated on August 4, 2017, with version 1.3. This suggests a less frequent update cycle compared to some other educational applications. ### What do teachers say about Teachley: Subtractimals EDU? Teachers praise the app for building on previous Teachley games, providing important subtraction strategies, and encouraging deep mathematical thinking. They note that it grows with each student and guides them in the subtraction process. ## Version history (last 4 releases) ### 1.3 — 2017-08-04 This app has been updated by Apple to display the Apple Watch app icon. 1-to-1 sign in feature. ### 1.2 — 2017-03-28 - Greater teacher control over app settings. - Improved gameplay. ### 1.1 — 2017-01-04 Fixed bug showing incorrect student image/name ### 1.0 — 2016-09-01 No release notes. ## Apps similar to Teachley | App | Rating | Price | Category | | --- | --- | --- | --- | | [Mathseeds: Fun Math Games](https://appshunter.io/ios/app/mathseeds-fun-math-games/id1632175905) | 4.6 (193) | Free | Education | | [Book Creator One](https://appshunter.io/ios/app/book-creator-one/id661166101) | 3.4 (591) | Free | Education | | [DreamBox Math](https://appshunter.io/ios/app/dreambox-math/id675354945) | 3.0 (673) | Free | Education | | [Math Facts - Flash Cards](https://appshunter.io/ios/app/math-facts-flash-cards/id1584946916) | 4.5 (14,426) | Free | Education | | [Kodable Basics](https://appshunter.io/ios/app/kodable-basics/id577673067) | 4.7 (20,902) | Free | Education | | [LetterSchool - Learn to Write!](https://appshunter.io/ios/app/letterschool-learn-to-write/id481067676) | 4.5 (16,840) | Free | Education | ## More apps by Teachley - [Teachley Addimal Adventure](https://appshunter.io/ios/app/teachley-addimal-adventure/id661286973) - [Teachley Mt. Multiplis](https://appshunter.io/ios/app/teachley-mt-multiplis/id877699973) - [Teachley: Subtractimals](https://appshunter.io/ios/app/teachley-subtractimals/id990584228) - [Teachley Fact Flyer](https://appshunter.io/ios/app/teachley-fact-flyer/id1068560210) - [Teachley Addimals EDU](https://appshunter.io/ios/app/teachley-addimals-edu/id1135468446) All apps by Teachley: https://appshunter.io/developer/661286976 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*