Примеры по математике 1 класс is a free Android application developed by 3D Portable Inc. that helps first-grade students to practice math problems. The app focuses on addition and subtraction operations and presents various examples to solve. Students can solve problems like 11 + 3 =, 15 - 8 =, 3 + 8 =, and more. The app generates random examples and provides instant feedback for each answer. Also, it gives students a rating based on their performance, with a maximum rating of 5+.

Overall, Примеры по математике 1 класс is a great tool for first-grade students to improve their math skills. The app is easy to use, and the interface is simple and intuitive, making it accessible to young learners. The app provides a fun and interactive way for students to practice math and improve their grades. However, it would be great to see more types of problems and more advanced levels in future updates.