How can I learn simple maths?

Hello there, I'm curious about learning some basic maths skills. Could you please guide me on how to approach this? Are there any specific resources or methods that you would recommend for someone who wants to improve their understanding of simple arithmetic and foundational mathematical concepts? I'm looking for something that's accessible and easy to follow, perhaps even some online courses or practice exercises that can help me build a solid foundation in math. Any advice you have would be greatly appreciated!