Subtraction Strip Board history 63 tablets representing 9 colors

63 tablets representing 9 colors in seven graded shades of red

blue and green small pegs and 6 color bowls

4 trays (20 x 20 x 4 cm) containing the following land and water forms: • System of Lakes • Archipelago • Bay • Cape

A wooden box with 8 compartments contains 4 pairs of empty stainless steel bottles

Set 1: diameter decreases as the height remains constant

Subtraction Strip Board history 63 tablets representing 9 colorsWooden board 12 squares by 18 squares with the numerals 1 18 printed across the top. A wooden box contains 9 red wooden strips and 9 blue wooden strips both printed with the numerals 1 to 9 and 18 natural wooden strips of varying lengths. Children use the Subtraction Strip Board by selecting subtractioncombinations of one through eighteen, thus reinforcing the child's comprehension of subtraction tables.