Make the multiplication and division tables from 1 to 10 fun and easy to learn. This ingenious grid, 7-3/4" (20 cm) square, has vertical and horizontal channels molded into soft, pliable PVC plastic. The material and design of this grid allows kids to continually fold and unfold again and again to find the correct answers to their multiplication problems. Includes Teacher's Guide with numerous activities. US Patent No. 5 997 305; UK Patent No. 2 232 698. This is a package of 10.
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