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Kölner Lernspielverlag

subtraction up to 20

subtraction up to 20

Regular price €6,90 EUR
Regular price Sale price €6,90 EUR
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Our subtraction to 20 card set for the punch box offers an exciting learning experience for 1st grade students. With a total of 48 exercises (24 cards printed on both sides), the skills in subtraction up to the number 20 are specifically trained. The children are introduced to subtraction and mathematical relationships in a playful way in order to improve their arithmetic skills in a targeted manner. The difficulty of the tasks increases with the number of cards, making it an exciting challenge for children.

Here's how it works

This is how the punch box works:

  1. Slide the deck of cards into the hole box.
  2. Put the wooden peg in the hole for the right answer.
  3. If the answer is correct, the card can be pulled out. If the answer is wrong, the card gets stuck.

You are promoting that

  • Basic math concepts and skills related to subtraction up to the number 20.
  • Numerical Understanding : By subtracting numbers, children develop a better understanding of the size and meaning of numbers.
  • Concentration and Problem Solving: Children are encouraged to concentrate and solve problems while finding the correct results in the subtraction problems.
  • Logical Thinking: Solving subtraction problems requires logical thinking and an understanding of number relationships.

Important mathematical foundations are laid with this set of cards, and the students playfully develop their skills in arithmetic and mathematical thinking.


The flashcards are made of high quality and durable paper.

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  • Free shipping from 40€ order value.

  • 14-day right of return for worry-free shopping

  • Eco-friendly packaging & materials

  • Uncomplicated customer service (via Instagram/Whats App)