Friday Crossword

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Across
  1. 3. A character from our book.
  2. 4. Using the opposite operation is called using the ______ operation.
  3. 7. The inverse of subtraction.
  4. 9. The main character in our book.
Down
  1. 1. Known as the red planet.
  2. 2. Another word for an animal coat.
  3. 3. The illegal killing of animals by humans.
  4. 5. When an animal lives by itself it is _________.
  5. 6. Saturn's rings were made by an ancient ice ______.
  6. 8. Pluto is a _______ planet.