Math terms

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Across
  1. 3. A number times itself
  2. 6. Times it.
  3. 8. Taking one number from another
Down
  1. 1. A quadrilateral with 2 sets of parallel lines
  2. 2. A type of parallelogram
  3. 4. Putting two numbers together
  4. 5. How many times does a fit into b?
  5. 7. What this ENTIRE CROSSWORD IS ABOUT!!!