Maths

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Across
  1. 4. The person who this's last name
  2. 5. write on
  3. 6. Minus
  4. 8. distributing numbers
  5. 9. the person who made this
Down
  1. 1. times
  2. 2. permanent pen
  3. 3. Gets rid of pencil marks
  4. 5. write with
  5. 7. Plus