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🧮 Calculator Check

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I can choose the calculator entry for a total cost.

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📖 Learn first

Choose the keys in the right order: multiply for equal items, then add extra costs.

Example: 4 balls at $300 plus a $100 fee

  1. Balls: 4 × 300
  2. Add fee: + 100
  3. Entry: 4 × 300 + 100

Questions get harder as you go. The last ones ask you to type the answer.