Objective

Use arithmetic operations (+, −, ×, ÷) on six numbers to reach a target number before time runs out!

Game Flow

1. Choose Numbers: Select 0-4 large numbers (25, 50, 75, 100). Remaining slots filled with small numbers (1-10).
2. Get Target: Computer generates a 3-digit target number (101-999) and verifies it's achievable.
3. Make Calculations: Click numbers and operations to build calculations.
4. Beat the Clock: Standard time is 30 seconds (customizable in settings).

Rules

• Each number can only be used once
• All intermediate results must be positive integers
• Division only allowed when result is whole number
• Not required to use all numbers

Scoring

• Exact match: 10 points
• Within 5: 7 points
• Within 10: 5 points
• Further away: 0 points

Tips

• Start with large numbers as multipliers
• Use small numbers for fine adjustments
• Think about factors of the target
• Use brackets for complex expressions like 7 × (3 + 5)
• Undo button is your friend!

Keyboard Shortcuts

• 0-9: Select number containing digit
• +, -, *, /: Operations (use * for multiply)
• (, ): Brackets for grouping
• Enter or =: Calculate expression
• Backspace: Remove last item from expression
• Escape: Cancel current expression
• U: Undo last calculation
• C: Clear all calculations
• S: Submit answer

Are you sure you want to clear all calculations and start over?

This action cannot be undone.