# mathematics

##### Across
1. 3. is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.
2. 6. says how many times to use that number in a multiplication.
3. 8. is the greatest factor that divides two numbers.
4. 9. two or more non-zero denominators is the smallest whole number that is divisible by each of the denominators.
5. 11. numbers is a real number that cannot be expressed as a ratio of integers, i.e. as a fraction.
6. 12. numbers which follow each other in order, without gaps, from smallest to largest.
7. 14. test of factoring is used to factor polynomials of the form Ax� + Bx + C. A, B, and C represent constants and x is the variable.
8. 15. solving may include mathematical or systematic operations and can be a gauge of an individual's critical thinking skills.
9. 16. the number above the line in a common fraction showing how many of the parts indicated by the denominator are taken, for example, 2 in 2/3.
10. 18. number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.
11. 20. is written with a minus sign in front
12. 21. fraction is a fraction where the numerator, denominator, or both contain a fraction.
##### Down
1. 1. is a squared (multiplied by itself) number subtracted from another squared number
2. 2. 2 numbers is the smallest number that they both divide evenly into.
3. 4. coefficient is defined as a fixed number that is multiplied to a variable.
4. 5. a numerical quantity that is not a whole number.
5. 7. the number below the line in a common fraction; a divisor.
6. 10. To factor a number means to break it up into numbers that can be multiplied together to get the original number.
7. 13. expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators
8. 17. is a quantity that may change within the context of a mathematical problem or experiment.
9. 19. is a number that is bigger than zero. It can be written with a "+" symbol in front of it, or just as a number.
10. 22. Number can be divided evenly only by 1, or itself. And it must be a whole number greater than 1.