The Subtraction Equations and Differences Box is a Montessori material designed for children to practice subtraction concepts, particularly within the number range of 1–18. It is a two-compartment box with a lid, containing two sets of materials:

• One set of equation cards, each with a subtraction equation printed on it (e.g., 18 - 7).

• One set of difference cards, each showing the corresponding answer to the equation (e.g., 11).

• The material is designed to be used alongside Subtraction Working Charts, offering a hands-on and visual approach to practicing subtraction.

Components

• 1 2-compartment box with lid for easy storage.

• 1 set of equation cards (subtraction problems).

• 1 set of answer cards (correct differences).

• Subtraction Working Charts for reference.

Key Learning Objectives

1. Subtraction Practice: Children will practice subtracting numbers from 1 to 18 through hands-on activities.

2. Number Recognition: Familiarize children with numbers and their relationships by matching equations with their corresponding answers.

3. Improved Concentration: The material encourages children to focus and concentrate on finding the correct difference.

4. Self-Correction: The answer cards allow children to verify their own work, promoting independence and self-learning.

5. Developing Mathematical Understanding: By using a tactile approach, children develop a deeper understanding of subtraction concepts.