The Case of the Golden Calculator

It's the morning of the Maple Street School Math Fair. The famous Golden Calculator trophy was on its stand in Room 12 — and now it's gone. 🏆💨

Principal Adds-a-lot calls in the school's sharpest detective… you. Five people were near Room 12 before the bell. Each one has an alibi — but alibis are only good if the numbers add up.

Solve each suspect's math clue to check their story. Clear the innocent ones, and the last name standing is your thief.

Addition & subtraction · best for grades 2–4

Begin the investigation 🔍