Make 24

Four numbers. One clever answer.

Small rules. Big focus.

1. Use all four given numbers exactly once with +, −, × and ÷ to make 24. Fractions and negative intermediate values are allowed.
2. Your score counts independently solved puzzles out of 20.
3. Undo or Reset to try another route. Revealing an answer or skipping permanently gives that puzzle no credit, even if you solve it later.
4. Choose a number, an operator, then another number to combine them automatically. Your click order sets the calculation order. Use Tab and Enter or Space to play with a keyboard. There is no time limit. Leaving for the background interrupts the game.

No sign-up. Just a little play.