8th math

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Across
  1. 2. a letter than represents and unknown number (3.6)
  2. 3. numbers multiplied together (1.3)
  3. 5. branch of math using letter and numbers (3.6)
  4. 7. removing the common factors before multiplying fractions (1.8)
  5. 11. 9 sided figure (5.1)
  6. 14. top of the fraction (1.6)
  7. 15. the outer 2 numbers of a proportion (1.7)
  8. 16. 10 sided figure (5.1)
  9. 17. polynomial with 2 terms (3.6)
Down
  1. 1. percentage of an original price (1.12)
  2. 4. ordered list of numbers in a pattern (3.5)
  3. 6. known or fixed quantity (3.6)
  4. 8. numbers being combined to find a sum (1.1)
  5. 9. represents part of the whole (1.6)
  6. 10. whole numbers and their opposites (1.2)
  7. 12. closeness to the actual value (2.4)
  8. 13. 7 sided figure (5.1)