Needs negative numbers. I have been looking for something like this. Could you modify it to use negative numbers from -1 to -10 in the addition multiplication division and subtraction? Would give 5 stars for that.
Good Very nice I just used it for my finals and it helped a lot.I'm into eighth grade
1.02 added System of Equations experiment
1.03 added Gaussian Jordan Elimination experiment
1.04 minor fixes
1.5 major fixes to work better on larger phones
1.6 added Factoring Trinomial, Quadratic Formula, Mandelbrot Fractal
1.7 added GCF/LCM, Linear Functions