Usages of математика
Я люблю решать задачи по математике.
I like to solve math problems.
Я занимаюсь математикой вечером.
I study mathematics in the evening.
Мой брат гордый, когда сам решает задачу по математике.
My brother is proud when he solves a math problem by himself.
Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.