Mathematics Crossword

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Across
  1. 3. How many 8s go evenly into 80
  2. 4. combining two or more numbers together
  3. 6. 2, 4, 6, 8, 10 and so on
  4. 8. What you must show with your Mathematics work
  5. 10. adding a number to itself a certain number of times
  6. 12. The space inside a shape
  7. 14. 1, 3, 5, 7, 9 and so on
  8. 15. The answer to an addition problem
  9. 17. The distance around the outside of a shape
  10. 18. Number before twenty
  11. 19. Taking one number from another
  12. 20. The measurement between two lines
  13. 21. to see how many times a divisor goes into another
Down
  1. 1. The Quotient of 20 and 4
  2. 2. The seventh prime number
  3. 5. Represents part of of a whole number
  4. 7. A numbers that have more than two factors
  5. 9. The answer to a multiplication problem
  6. 11. A number represented as out of 100
  7. 13. Seven times five
  8. 16. a number that is divisible only by itself and 1