Make 24
Use each of four numbers once to make 24. Build an expression — tap the numbers and signs, or type it.
This week's tip
Week 39 · Addition
Adding left to right
Add multi-digit numbers in your head from the left, keeping one running total, instead of using the right-to-left method built for paper.
All games
What else is here
Every game, and how long each one takes.
Archive
Past Make 24 puzzles
Nothing expires. Yesterday's is still there.