TL:DR; Calculate the percentage of any number out of any number.
Calculate the percentage of any number out of any number.Great little tool to have on hand.
Algebra - One on One is an educational game for those wanting a fun way to learn and practice algebra. This program covers 21 functions. It has a practice and a game area. Includes a two player combat game.
Handy and useful expression calculator and converter with skins and lots of features
Math Mechanixs is a general purpose math program with a Math Editor for solving mathematical problems and taking notes, extensive Function Library and Function Solver, 2D and 3D Graphing, and a Calculus Utility with integration and differentiation.