Math Crossword

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Across
  1. 2. The angle of one interior angle of a hexagon.
  2. 3. The angle of one interior angle on a square
  3. 7. Express 16384 as a product of prime factors, in index notation.
  4. 10. The sum of interior and exterior angles of a heptagon.
  5. 11. LCM of 78 and 352
  6. 12. 4(x-2)+3x(4-y)
  7. 14. HCF of 750 and 100
  8. 15. 4^9
  9. 17. a profit of $2000
  10. 19. Express 360 as a product of prime factors
  11. 21. 15km below sea level
  12. 23. 14xyz - xyz
  13. 25. 200^3
Down
  1. 1. The sum of interior and exterior angles of a hexagon.
  2. 2. ∛1296 to the nearest tenth
  3. 4. Express 0.02814 to 3 significant figures
  4. 5. Number of sides on a dodecagon
  5. 6. Number of sides on a decagon
  6. 8. x . y . 12
  7. 9. 3x^2(4-x)+2(5x^2-2x^3)
  8. 10. 8^-1
  9. 11. 200x{100-[4x(2+8)]}
  10. 13. 4xy . 2x^2y . 7
  11. 15. Prime number after 283
  12. 16. 2(ab)^2 if a= 3 and b= 5
  13. 18. The difference between 25 and the unknown number (x)
  14. 20. The sum of the exterior angles of an octagon.
  15. 22. Express 12305 to 4 significant figures
  16. 23. {6+[5x(2+30)]} x 10
  17. 24. The sum of interior angles of a triangle