(905) 313-0530 Fax: (905) 313-0402 E-mail: montessori1907@gmail.com
(905) 313-0530 Fax: (905) 313-0402 E-mail: montessori1907@gmail.com
This set includes a control chart, two working charts, each with a wooden frame, and a box of wooden answer tiles.
The tiles are used to complete the subtraction tables on the charts.
The Subtraction Working Charts help the child practice and memorize subtraction facts.
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