A fast-paced mental arithmetic game where you see an equation with a missing operator — for example "5 ? 3 = 8" — and must pick the correct operator (+, −, ×, ÷) as quickly as possible. You have 60 seconds to answer as many as you can.
How to Play
Click Start to begin the 60-second countdown.
Read the equation with the missing operator (shown as ?).
Click the correct operator: +, −, ×, or ÷.
Correct answers advance immediately; wrong answers are counted.
When time runs out, your final score is shown.
Controls
+ − × ÷ buttons — Select the operator
1 2 3 4 keys — Keyboard shortcuts for each operator
Frequently Asked Questions
Numbers are kept small (2–12) to keep it fast-paced. Division questions always produce whole number results.
Questions are generated so that only one operator produces the correct result. If multiple would work, a different equation is generated.
Yes — your best score (correct answers in 60 seconds) is saved in browser local storage.