Guess the Calculation (Countdown Style)
Test your arithmetic skills in this Countdown numbers game
Select Numbers
Choose 6 numbers from the available set or pick randomly.
Set Target
Enter a 3-digit target number (100-999) or generate one.
Calculate
Use the selected numbers and basic operations (+, -, *, /) to reach the target.
Solve
Try to get as close as possible. Exact match or optimal solution gets max points!
Calculation Challenge
MultiplayerSolve the calculation before your friends do!
Training Mode
Choose your own numbers and target to practice. Games are not rated and don't count towards your profile score.
Put your arithmetic skills to the test! Given 6 numbers and a target value, can you find the exact calculation to reach the goal using addition, subtraction, multiplication, and division? Matches are based on the popular 'Countdown' numbers game.
Follow these steps to solve the puzzle:
- Select 6 numbers. You can choose specific large/small numbers or random ones.
- Set a target number between 100 and 999.
- Combine your selected numbers using + - * / to reach the target.
- You don't have to use all numbers, but you can only use each selected number once.
Standard rules apply:
- Only integers are allowed at any step.
- Division must result in a whole number (no remainders/fractions).
- You can use as few or as many of the 6 numbers as needed.
- Each of the 6 starting numbers can only be used once.
- You can undo steps or reset to try a different approach.
Base points (max 500) are awarded for proximity or optimal solution:
- Exact Match or Optimal Solution (distance & steps): 500 base points
- Per unit of distance: -50 base points
- Efficiency Bonus: +50 points per unused step (up to 250 points)
- Optimality Bonus: +100 points for matching the best solution
- Total Score = Base + Efficiency + Optimality
- More efficient solutions earn more points!