Maths Activity Puzzle

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Across
  1. 6. I am used to find x
  2. 7. The comparison of at least two quantities
  3. 8. I am pronounced like a food, circle likes me
  4. 9. I consist of positive, negative and zero
  5. 10. The mathematics of chance or possibility
Down
  1. 1. The calculation of per 100
  2. 2. I can be proper or improper
  3. 3. A Quadrilateral with equal sides & right angle
  4. 4. The mathematics of data
  5. 5. The total length of outer side