Carly's Crossword

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Across
  1. 3. something you can read
  2. 6. an ancient civilization
  3. 7. when you add 2 numbers together
  4. 8. a thing you do in science
Down
  1. 1. the sequence you use to solve a math problem
  2. 2. when you open up a body
  3. 4. what you do when you're reading
  4. 5. you use this to find where you're going