Maths words term 2

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Across
  1. 5. The study of measurement
  2. 6. The measurement of the inside of an object or shape
  3. 7. A positive or negative number
  4. 10. A device used to solve maths sums
  5. 12. To investigate something's proportions
  6. 15. The way that something is written
  7. 17. To find an answer to a problem
  8. 18. The measurement of the outside of an object or shape
  9. 22. Means 'of one hundred'
  10. 23. Terms that are not the same
  11. 24. To put something in its simplest form
  12. 25. To write an expression in its longest form
Down
  1. 1. The measurements of an object or shape
  2. 2. Terms that are the same
  3. 3. Half of the diameter
  4. 4. The line that goes through the middle of a circle
  5. 8. The outside of a circle or sphere
  6. 9. A part of a whole number
  7. 11. How teachers check how much you have learned
  8. 13. A number
  9. 14. To gather
  10. 16. How many times a number is multiplied by itself
  11. 19. The same as
  12. 20. A tool used for measuring
  13. 21. Simplify an expression by finding the highest common factor
  14. 26. 3.14