Adult Mental Math Coaching

I’m an adult learner determined to sharpen my ability to add, subtract, multiply, and divide entirely in my head. I’d like a tutor who can break down proven mental-math shortcuts, demonstrate them live,... (Budget: $30 - $250 USD, Jobs: Education & Tutoring, Learning Management Systems (LMS), Math Tutoring, Mathematics, Matlab and Mathematica, Statistics, Teaching/Lecturing, Tutoring)