⦁ Arithercise is a set of arithmetic puzzles that offer exercise of formats and procedures for the standard arithmetic operations of:

1. Addition
2. Subtraction
3. Multiplication
4. Division
5. Factorization
   ⦁ Each category of operation provides automatic generation of puzzles according to optional settings for size (number of digits) and number of decimal places for multiplication and division.
   ⦁ These puzzles enable drill for students or mental exercises for relaxation purposes.
   ⦁ The operation of the puzzles are intuitive and mimic the same operations using pencil and paper.
   ⦁ Each puzzle will recognize a correct solution and display a notice when complete.
   ⦁ All puzzles support touch screen taps, mouse clicks and drag-drop of digits.
   ⦁ Students are encouraged to consult with a teacher for help with the procedures especially when first starting multiplication, division and factorization.
   ⦁ Teachers should find the puzzles useful for drill and consolidation of student progress.