ARE YOU A MATH ROYAL?

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Across
  1. 1. 0.12345
  2. 2. Numbers, symbols and operators grouped together that show the value of something
  3. 4. a set of values that show an exact position
  4. 5. a synonym of 'power'
  5. 7. a numerical quantity that is not a whole number
  6. 8. an accuate number close to the correct, although not exact
  7. 13. SALE! EVERYTHING IS 50% OFF
  8. 15. a relationship between two numbers of the same kind
  9. 17. the action of which a big group is broken up into smaller groups
  10. 18. written as a small number to the right and above the base number
Down
  1. 1. making something smaller in size or quantity
  2. 3. a fraction in which the numerator is greater than the denominator
  3. 6. the square ______ of 144 is 12
  4. 7. a time period of 2 weeks
  5. 9. making something bigger in size or quantity
  6. 10. per year
  7. 11. synonym of calculate
  8. 12. numbers you can multiply together to get another number
  9. 14. A number with no fractional part/ only whole numbers
  10. 16. synonym of plus