Видео с ютуба Mathematics Basic

Before you learn math, know the basics

BASIC Math Calculus – Understand Simple Calculus with just Basic Math in 5 minutes!

Intro to Pure Math #1 – Addition and Gauss's Proof

Math Foundations – Basic Math Skills every Adult should know

How to Actually Get Better at Math

Learning Math

Основы алгебры: Что такое алгебра? - Math Antics

Becoming good at math is easy, actually