Doesterr - Is math not a right brain activity? Addition and subtraction I do by visualizing groups of dots. Ditto with multiplication. Geometry is almost all spacial and/or visual. Trigonometry is about the same - There are a handful of numbers I had to memorize, but everything else is visualization of triangles and circles. If you can do that then trig is a breeze. Sets/subsets, binary logic - I use the "dot" method above. Same with conversion between number bases (binary, octal, hexadecimal). BTW, I work as a computer programmer and when designing a system I "see" the logic as a kind of flowchart.