Dimensions: Each bone measures 60mm x 210mm.!

!Maths Crunchers: A highly motivational, fun and simple product to use. These bone shaped crunchers are printed black on yellow for optimum visual clarity. Slide the question mark over to conceal part of a sum, symbol or sequence etc. Each cruncher in the pack is different! A product that can be used time and time again!

Number Crunchers to 10; Number bonds to 10 have never been so simple - and so much fun! Each bone is printed with a number bond sum on it and has a plastic slider which can easily be moved to conceal the result, the first or second part of the sum or even the symbol. 100 Bones in the pack.