Using the Addition Strip Board, the child practices the sequence of addition combinations 1-9, and begins the process of memorization of the addition tables. The material is composed of a hardboard chart 12 squares by 18 squares with the numbers 1-18 printed across the top. Stored in a hardwood box are the strips used for the exercise, 9 red strips divided into squares and 9 solid blue strips, both printed with the numerals 1-9.
This Nienhuis item is sent directly from Nienhuis in the Netherlands and takes approx. 7-10 days. Separate shipping charges
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