Anna's math crossword

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Across
  1. 3. angle / 90 degrees
  2. 4. / a shape with four equal sides
  3. 6. / a type of number between two whole numbers
  4. 7. graph / a graph named after a food
  5. 11. / numbers below zero
  6. 12. / used to measure angles
  7. 14. / triangle with two sides the same length
  8. 16. mas / brackets, exponents, division, multiplication, addition, and subtraction
  9. 18. / distance from the centre of the circle
  10. 21. / triangle with all sides the same length
  11. 22. / five + five
  12. 23. / seven days
  13. 25. / fifteen + three
  14. 26. graph / a graph with bars
  15. 27. / half of one hundred
  16. 28. / eight equal sides
Down
  1. 1. / the same as sixty minutes
  2. 2. / one thousand miller litres
  3. 4. angle / 180 degrees
  4. 5. / a name for equal sided shapes
  5. 7. / numbers above zero
  6. 8. / distance though the center of a circle
  7. 9. / the distance around the outside of the circle
  8. 10. / length or measurement around the outside of a shape
  9. 13. / to add another number to a number
  10. 15. / triangle with all sides different lengths
  11. 17. / to take a number away from the original number
  12. 19. / one hundred centermetres
  13. 20. / one thousand metres
  14. 24. / five equal sides