Number Crunchers To 20 - Pack of 100

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 20; Hold up the bone saying 1 + 15 = ? OR 1 + ? = 16 This simple to use and yet incredibly versatile set includes 100 large plastic bones with sliders to conceal any part of the addition and subtraction sums to 20.

• This set does not include number bonds to 10
• Dimensions: Each bone measures 60mm x 210mm