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The workbook is an effective aid to third-graders in acquiring competent mathematical knowledge, skills and abilities in distance learning or offline learning. The content of the workbook meets the requirements of the Model Educational Programmes in Mathematics.

The textbook is accompanied by an interactive simulator with tests on topics for students. After passing the tests, the student can get the results, make a screen and send them to the teacher. A separate file contains these tests (doc. format) for the teacher, which can be edited at their own discretion, printed out and used offline during the lesson. They can also be uploaded to the online learning platforms that teachers use for distance learning.