Solve Sudoku puzzles by filling a 9x9 grid with digits 1-9. Each row, column, and 3x3 subgrid must contain unique numbers. Choose from 5 difficulty levels. Play for free without in- purchases.
The app calculates any given triangle using three sides, two sides and one angle, or one side and two angles. Input is graphical, with results shown numerically and graphically.
Practice facts with customizable card sets for addition, subtraction, multiplication, division, and mixed operations. Choose from six difficulty levels per operation. Use speech recognition to enter answers. Includes sound effects and animations.