Fact Fluency

Minute Math

Thirty seconds. Answer as many as you can. You get three mistakes — but the first one costs you Gold, the second costs you Silver, and the third ends the run. You do not press Enter: the answer submits itself the moment you have typed enough digits.

Operations
Medals are calibrated on all four together. Multiplication answers run long, so this default is a shade harder than the full mix — subtraction and division are easier.
Negatives
Signed operands across all four operations. Same medals, harder run — the sign rules cost you time, and the minus key is a long reach.