Smile, math is fun :-) so is Grammar

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Across
  1. 4. the number of parts or top number in a fraction
  2. 6. MMXVIII - MCMLXIX
  3. 10. the answer to a subtraction problem
  4. 11. the number of parts in a whole or bottom number in a fraction
  5. 13. "a" and "an"
  6. 16. a number whose factors are only one and itself
  7. 17. the number of 4th grader students
  8. 18. hope, love, fear, freedom
  9. 20. XXVIII multiplied by LXIX
  10. 21. the answer to a division problem
  11. 22. the collective noun for a group of hens
  12. 23. the common noun for Wisconsin
  13. 24. a triangle with two equal sides
  14. 25. the answer to a multiplication problem
  15. 27. the greatest common factor of 72, 63 and 108
Down
  1. 1. the "bottom" number that you take away in subtraction
  2. 2. the collective noun for a group of hippopotamuses
  3. 3. a word that describes a verb or adjective
  4. 5. the number "taken" by the multiplier in multiplication
  5. 7. a fraction where the numerator is greater than the denominator
  6. 8. "the" for any singular noun
  7. 9. two thousand three hundred ten divided by one hundred fifty four
  8. 12. a number you add in an addition problem
  9. 14. an angle greater than 90 degrees
  10. 15. the number that you divide (inside) in division
  11. 19. XCIV
  12. 26. the plural form of ox