A set representing long numbers from 1 to 999 with base 10 manipulative material. The number cards are reversible: the back shows the same amount as the front but in the form of base 10 blocks. Inspired by the Montessori methodology.
Includes 27 number cards divided into 9 units, 9 tenths and 9 hundredths, using the colours of the Montessori methodology, plus 120 pieces divided into: 100 units, 10 bars or tenths, and 10 tiles or hundredths, also in the Montessori colours. Inspired by the Montessori methodology.