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square-based pyramid (quadratic pyramid)
presenting the equation(A+b)3 =a3+3a2b+3ab2+b3The lid of the box presents the pattern in a flat form
5 Packaging method Blister+white box Quantity of packages 16 Outer box specification cm 48
6 Materials: Beechwood Age(month): 8-30 Certified by: ASTM F963 EN71 1 2 3 Montessori Materials for infants and toddlersPurpose :1
Number writing board with box
Three-Parts Cards w/ Stand -Wild Animals（24 sets） Infant and Todder square-based pyramid (quadratic pyramid)Three Parts Cards w Stand Wild Animals24 sets with plastic stand
US$ 46.00
US$ 129.00
US$ 123.75
