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🌻 Yard Mission

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I can find an area then subtract a part.

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📖 Learn first

Two steps: find the area, then subtract the part that is covered.

Example: Yard 10 m × 6 m, pond 8 m²

  1. 10 × 6 = 60 m²
  2. 60 − 8 = 52 m²

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