Arithmagons app for iPhone and iPad

Use the classic teaching tool of Arithmagons to both teach and challenge arithmetic learning. Addition and multiplication are covered. Both of these can cover negative numbers. Addition can also cover decimal numbers to one or two decimal places. Multiplication covers numbers up to 12. Addition lets users decide whether to work with numbers <10, <100 or <1000.

There are two modes:

Practice lets the user practice without any constraints or for teachers to demonstrate methodologies.

Challenge times the user while they attempt ten questions. At the end it lets them and their teacher know how long they took and how many mistakes they made.

Questions can be to find the numbers in the circles, those in the squares or a mix of both.

For those who havent encountered Arithmagons: The numbers in the squares should be the result of adding or multiplying the numbers in the adjacent circles.