Understand the tens transition in minus tasks. The stripboard helps with subtraction. All subtractions that fall below the tens are practiced. Training takes place on the 10th. If the tens transition is understood here, it works in the same way on every other tens such as 20, 30, 90 etc.

Use, advantages, areas of application for this Montessori material:

• • Learn tens transitions in minus tasks

• • Montessori material for children from 6 years

Scope of the Montessori learning material:
1 strip board for subtraction, wood, approx. 41 x 28 cm
9 red strips, wood, width each: 2 cm, length different, depending on the numerical value
9 blue strips, wood, width each: 2 cm, length different, depending on the numerical value
17 cover strips white, wood, width each: 2 cm, length different, depending on the numerical value