This is the Maths Project Seven Divisibility Disc. It's very useful for children who are doing maths projects for any exhibition. It's used with the concept of Divisibility Property with Seven. Complete Logic behind this Seven Divisibility was explained in this Video ( Seven Divisibility Disc Project with Solution Making Video Duration: 9 minutes ) In your contribution, 90% amount will be used for Poor Children Education. AKSHARA FOUNDATION For ORPHANS(Support Us)