Math crossword

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Across
  1. 3. Solution to addition
  2. 4. Two lines that cross at right angles
  3. 5. The bottom number of a fraction.
  4. 8. Solution to multiplication
  5. 9. Set of information with repeating x variables
  6. 10. The distance around a circle
Down
  1. 1. a number that is multiplied by itself to form a product; the inverse of squaring a number
  2. 2. A number that represents a part of a whole.
  3. 6. a number sentence or rule
  4. 7. The top number of a fraction.
  5. 11. To find an answer close to an exact answer.