Many workbooks are designed to help students form specific learning algorithms. Use the answers to explain why a certain rule applies, rather than just what the result is.
Русский язык 2кл ч1 [Рабочая тетрадь] - Климанова Л. Ф., Бабушкина Т. В.
If your child is struggling with the accompanying workbook, detailed solutions for both parts are available at Skysmart Workbook Answers . Essential Skills for 2nd Graders