Snack Shop Subtraction Lab
Buy snacks, calculate change, say the maths in two languages.
Original classroom micro-app for quick subtraction practice using a friendly snack-shop menu. Designed for stations, intervention groups, home practice, and bilingual vocabulary warm-ups.
Interactive takeaway challenge
Choose a budget, pick a menu item, then work out the change. The app generates fresh prompts without internet access.
Bilingual sentence frames
- I buy ___ for €___. My change is €___.
- Ich kaufe ___ für €___. Mein Rückgeld ist €___.
- First subtract the euros, then check the cents.
- Ziehe zuerst die Euro ab, dann prüfe die Cent.
Printable menu cards
Teacher notes
- Print the menu cards or project the app.
- Students solve three rounds independently.
- Partners explain one answer in English and German.
- Use the extension: “What two snacks can I buy with €10?”