Sum Of First n Natural Numbers And Sum Of Cubes Of First n Natural Numbers


Product Specification :

  • White piece of plastic sheet of size 200 x 225 x 6 mm with 100 inbuilt aluminium pins of height 2mm, equidistant, in ten rows to hold square pieces.
  • 110 square pieces of size 20 x 20 x2 mm with colours (White-2, Red-10, Green-30 & Blue-68) with center hole. Also 1 small name plastic strip of size 160x200x 2mm with printing on both sides which can be fitted on the big white piece.