Subtraction Strip Board
Montessori Mathematics Material
Subtraction Strip Board gives the child the possibility of practising subtraction leading to the memorization of the essential combinations; (up to 18 – 9, as no singe digit subtraction has an answer greater than 9)
What's Included:
- A wooden board (12 squares by 18 squares) with the numerals 1-18 printed on top
- A wooden box contains 9 red wooden strips and 9 blue wooden strips both printed with the numerals 1 to 9
- A wooden box contains 18 natural wooden strips of varying lengths
