4. Khan Academy
Studying and learning at your own pace online is offered at Khan Academy that is next on our list of free math classes for adults in NYC. You can find practice exercises, instructional videos, and a learning dashboard. The available classes for math are from kindergarten level to calculus. Khan Academy has tools available for parents and teachers and these tools will equip these coaches to understand their kids, this way, they will know the better way to help them. Other subjects that you can find here aside from math are physics, chemistry, biology, history, grammar, and even computer programming.