math crosswrod

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Across
  1. 1. The horizontal line running through the origin on a coordinate plane.
  2. 4. The answer to an addition problem.
  3. 7. The vertical line running through the origin on a coordinate plane.
  4. 9. The bottom number or expression in a fraction
  5. 11. Likes to chase mice
  6. 12. Man's best friend
  7. 14. Has a trunk
  8. 15. The top number or expression in a fraction.
Down
  1. 2. To rewrite an expression in a way that means the same thing but is simpler
  2. 3. A number greater than zero
  3. 5. A numerator divided by a denominator
  4. 6. Large marsupial
  5. 8. A plane curve that is mirror-symmetrical and is a u shape
  6. 10. A value less than zero
  7. 13. Flying mammal