🍴 Sum Thing Delicious – A Self-Correcting Restaurant Math Activity (Excel & Google Sheets)Welcome to Sum Thing Delicious, the restaurant where math is always on the menu! In this interactive, self-correcting activity, students step into the role of a cashier and fill out real-world style restaurant receipts. As they total each order, students will: ✅ Calculate sales tax and tip based on given percentages ✅ Find subtotals and grand totals for each customer’s bill ✅ Receive instant feed