Maths

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