Subtraction Strip Board

Regular Price: $50.00
On Sale For: $24.99
In stock
Subtraction problems of 1 to 18 are practiced, and the memorization of subtraction tables is aided through the use of the Subtraction Strip Board. Consists of a hardwood board divided into squares with the numerals 1-18 printed across the top and a vertical blue line printed before the 10. A polished hardwood box stores 9 blue and 9 red wooden strips of varying lengths with the printed numerals 1-9. Red strips are divided into squares while the nine blue strips are undivided. Smooth, natural wood strips corresponding in length to the squares 1-18 are contained in a second hardwood box.