How to play
Rules for all three Make Ten puzzle modes, plus how the timer, streaks and stats work.
The basics
- Press Start when you're ready
- The puzzle stays hidden until you press Start, and the clock begins at that moment - so the time reflects how long you took to solve it, not how long the tab was open.
- Beat the clock to keep your streak
- Solving counts either way, but only a fast enough solve extends your streak. Each mode has its own limit, shown below. The clock cannot be restarted by reloading.
- Stuck? See the answer
- Give up at any point to reveal the solution. That ends the day's puzzle and skips the streak, but it still counts as played - and it's the fastest way to learn a new trick.
- A new puzzle every day
- All three modes reset at midnight UTC. Your streaks, win rate and best times are stored in your browser, separately for each mode.
Make 10
Use all the given numbers exactly once to create an expression that equals 10.
Rules
- Use each number exactly once
- Use basic operators: +, -, *, /
- Use parentheses to control order of operations
Example
Numbers: 2, 3, 4, 5
Solution: (4 * 2) + 5 - 3 = 10
Streak
Solve within 45 sec to extend your Make 10 streak.
Play Make 10Make X
Use all the given numbers exactly once to create an expression that equals the target number.
Rules
- Use each number exactly once
- Use basic operators: +, -, *, /
- Use parentheses to control order of operations
- Drag and drop items, or click them, to add them to your expression
- Click the × button on any item to remove it
Example
Numbers: 100, 2, 8, 50, 6, 5
Target: 100
Solution: 100(8-5) - 50(6-2)
Streak
Solve within 1 min to extend your Make X streak.
Play Make XMake Exact Operations
Place an operator between each pair of numbers so the expression equals the target number.
Rules
- The numbers stay in the order shown - only the operators are yours to choose
- Use basic operators: +, -, *, /
- Standard order of operations applies
- Drag and drop operators, or click them, to fill a slot
- Click the × button on any operator to remove it
Example
Numbers: 2, 8, 3, 9
Target: 17
Solution: 2 + 8 * 3 - 9
Streak
Solve within 45 sec to extend your Make Exact Operations streak.
Play Make Exact Operations