MATH!!!

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Across
  1. 1. equation showing a relationship in the numbers
  2. 5. one number 1 to 9.
  3. 6. opposite from multiplication.
  4. 7. a small number above a different number.
  5. 8. minus two numbers.
  6. 11. no remainder.
  7. 13. bottom number of a fraction.
  8. 14. two words together, bar using graph.
  9. 15. close guess
Down
  1. 2. adding.
  2. 3. Result when you subtract.
  3. 4. graph using years and history.
  4. 7. two quantities are the same
  5. 9. normal.
  6. 10. Angle less than 90 degrees.
  7. 12. how tall is a shape