CROSSWORD PUZZLE TIME

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Across
  1. 4. making a number simpler but keeping its value close to what it was
  2. 6. it measures the amount of turn
  3. 7. a collection of facts, such as numbers, words, measurements
  4. 9. the bottom number in a fraction
  5. 12. two lines on a plane that never meet
  6. 13. a symbol used to make numerals
  7. 14. a line with a start point but no end point
Down
  1. 1. taking one number away from another
  2. 2. the top number in a fraction
  3. 3. the result of subtracting one number from another
  4. 5. a straight line inside a shape that goes from one corner from another
  5. 8. the total surface of a shape or space
  6. 10. a flat surface with no thickness
  7. 11. an exact location, it has no size, only position
  8. 12. things that are arranged following a rule or rules