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Across
  1. 2. set of numbers including zero
  2. 4. to divide into halves
  3. 7. top number in a fraction
  4. 10. a quantity that can change, not constant
  5. 12. not a whole number
  6. 14. distance from the centre of the circle to it's circumference
  7. 18. integer denoting null quantity
  8. 19. The point where a graph crosses the x-axis
  9. 22. longest side of the triangle
  10. 24. set of numbers including positive and negative numbers
  11. 25. 3x+y=0
  12. 26. branch of math that is the study of shapes and solids
Down
  1. 1. unit of energy
  2. 3. unit of measurment for long distances
  3. 5. a polynomial with degree two
  4. 6. The point where a graph crosses the y-axis
  5. 8. total space covered by a figure
  6. 9. sum of values divided by number of values
  7. 11. least common multiple
  8. 13. measure of steepness of a line
  9. 15. number to be divided
  10. 16. like km,L,kg
  11. 17. a quadrilateral with at least one pair of parallel sides
  12. 20. two numbers whose hcf is 1
  13. 21. ratio of the circumference of a circle to its diameter(=3.141)
  14. 23. polygon with 8 sides