Week 5 spelling crossword

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Across
  1. 3. five children born at the same time
  2. 4. a two-hundredth anniversary of something important/significant, e.g. Einstein's birth
  3. 5. a way to measure lengths
  4. 6. a synonym of quintessential
  5. 7. four children born at one birth.
  6. 8. relating to a hundredth anniversary
  7. 10. a four sided shape/figure
  8. 11. an animal that has four feet.
  9. 16. a rate out of a hundred
  10. 17. a fourth
  11. 18. relating to a system of numbers based on the number ten
  12. 20. a tenth of a millennium
  13. 21. an eight-sided shape
  14. 22. ten years
Down
  1. 1. a group of eight things
  2. 2. to obliterate or to kill
  3. 3. the most perfect example of a quality
  4. 8. a synonym of celsius
  5. 9. four times as much
  6. 12. a sporting event consisting of ten different sport/activities
  7. 13. the interval between eight notes (in music)
  8. 14. a group of four musicians or singers.
  9. 15. a five-sided 2-D figure
  10. 19. five people singing/ playing music together.