どこでもワーク　数学２年計算編 is an educational app developed by 株式会社　文理. It is a comprehensive problem set that fully corresponds to school textbooks.

The app offers a wide range of practice problems, with over 100 questions that focus on calculation exercises and help prepare for regular tests. One of the notable features of this app is the ability to record the intermediate steps of calculations using a numeric keypad, allowing users to easily identify their mistakes.

In order to make learning more engaging, users can decorate their "Curio Room" by collecting items. Completing all the questions correctly in a unit rewards users with an item. The app also provides various user-friendly features, such as the ability to retry only the incorrect questions and access to related formulas.

Please note that items can only be obtained by solving all the questions correctly in a unit, either in sequential or random order. Various settings, such as sound effects, timer, keypad instructions, and learning history reset, can be accessed through the gear icon in the top right corner of the screen.

どこでもワーク　数学２年計算編 is a free app available on Android devices running Android 4.0 or later.