The Math Detective Agency
case 001 - ledger47 x 19 = ___703 / 28 = ___remainder is the clue893

The math is the evidence.

Crack neo-noir cases with multiplication and long division - every wrong answer is taught back step by step with fresh numbers until the quotient holds.

Open Case 001 →

How a case works

1. Run the numbers. The ledger shows 47 times 19. Type your product into the evidence field and submit.

2. Miss, and get taught. A wrong figure triggers a step-by-step walkthrough of the same operation with new numbers - new evidence, same method.

3. Close the case. Verify every row - products, quotients and remainders - and the verdict drops. Case 002 opens once Case 001 is closed.

Long division on the suspect's alibi leaves a remainder of 3. Check the evidence table again - one wrong product and the case collapses.

Built for the kitchen table: a parent, a kid stuck on long division, and one contained case file instead of scattered worksheets.