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Primary subject

Pick the subject that suits most to the studying skills

Exercise skill

Использование формулы периметра

Other skills, required for completion (optional)

Что такое периметр

Что такое прямоугольник

Сложение чисел до 100

Вычитание чисел до 100

Required response time

seconds

Count of unique questions

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Language

Special requirements

Hint - how to solve the game

Explanation - how to solve this task

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