Mathematics Crossword Puzzle

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Across
  1. 2. 98765 below sea level
  2. 6. 5a + 3b - 7(a + 2b) = -2a - 11b
  3. 9. What is the sum of the interior angles of a quadrilateral
  4. 11. 3x + 2xy - 2x
  5. 14. 3xy + 2xy - 8a - 10b + 5b + 8a
  6. 15. the interior sum of a pentagon
  7. 16. √4761
  8. 18. 5 x 36 + 12 ÷ 2
  9. 19. 7^9 - 6^4 + 3^8 ÷ 3^6
  10. 22. A prime number between 84 and 96
  11. 25. 6^5 + 2^3
  12. 28. In a triangle, ∠A = 46°, ∠B = 79°, find ∠C
  13. 29. ∠A and ∠B are co-interior angles, given that ∠A is 112°, find ∠B
  14. 30. Given that x = 7, find 5x + x - 4x ÷ 2 + 11
  15. 31. the exterior angle sum of polygons
  16. 32. 3495 ÷ 5 + 9 ÷ 3
  17. 33. 8 x (56 - 9) + 6 ÷ 2
Down
  1. 1. round 47.9 to the nearest whole number
  2. 3. Given that x = 3, find 8x - 9(3x + 4) + 146
  3. 4. (57 + 33) ÷ 3
  4. 5. 24 = 2 x 2 x 2 x 3 and 12 = 2 x 2 x 3. Find the HCF of 24 and 12
  5. 7. 10² + 5² x 10 + 2000
  6. 8. In an isosceles triangle, ∠A = ∠B = 38°, find ∠C
  7. 10. Round 6.943 to 3 significant figures
  8. 12. 9x + 6xy + 4xy - 8x + 9
  9. 13. 5(y - 2) + 3(y + 6)
  10. 14. LCM of 7 and 8
  11. 17. HCF of 24 and 36
  12. 20. 6²
  13. 21. the interior sum of a isosceles trapezoid
  14. 23. 5(4 - 2) + 4 ÷ 2 + 5
  15. 24. what is the size of one exterior angle in an octagon
  16. 26. ∠A and ∠B are corresponding angles, given that ∠A = 79°, find ∠B
  17. 27. a loss of 46kg
  18. 30. Round 36.793 to 4 significant figures
  19. 34. 5 x 6 + 89 - 40