MATH CROSSWORD THINGY

5. These are whole numbers (Both positive and negative) including zero.
7. This is the study of math that substitutes letters for numbers to solve for unknown values.
9. When you are told to find a sum, you should be using the math operation of ________.
10. This is a set of numbers without bound limit or end.
11. This is the study of lines, angles and shapes and their properties.
13. Rise over run is the formula for ____.
15. In Roman numerals, X = _______.
17. This angle has a measure of exactly 90 degrees.
19. In an equation, you must have an ___ ___ (2 words).

1. x,y,a, and b are all letters used for unknown numbers known as _______.
2. The academic quarter that we are currently in.
3. This math number is approximately equal to 3.141593.
4. A negative times a negative is a ____.
6. In a circle, Pi times the ____ = Area.
8. in a triangle, 1/2 the ____ times the height = Area.
12. In Roman numerals, C = ______.
14. These numbers are integers greater than 1 which are only divisible by themselves and 1.
16. A negative times a positive is a ____.
18. In a rectangle, length time width is the _____.