Maths

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Across
  1. 3. A _____ is a proven statement used for proving another statement
  2. 6. Two lines that do not meet
  3. 7. Any integer that is greater than one and is not a prime number
  4. 9. Method of substituting one variable to solve the other
  5. 11. Least Common Multiple
  6. 13. Method of eliminating one of the variables
  7. 14. Two lines that lie on top of one another
  8. 15. Any number that cannot be written in the p/q form
  9. 19. The sum of its positive divisor excluding the number itself is known as ______ number
  10. 20. A statement that has been proven
Down
  1. 1. Procedure or formula for solving a problem
  2. 2. Any number that can be written in p/q form
  3. 4. A decimal number that has digits that do not go on
  4. 5. A curve formed by all points
  5. 8. An ________ is an equality containing one or more variable
  6. 10. Tow or more lines that meet at a point
  7. 12. A natural number greater than one that has no divisor other than one itself
  8. 16. A set of whole numbers
  9. 17. A polynomial of degree 1
  10. 18. Highest Common Factor