Mathematicala mystries

4. The process of combining two or more numbers to find their sum.
5. A number by which another number is to be divided.
7. A whole number greater than 1 that has no positive divisors other than 1 and itself.
8. Lines that are equidistant from each other and never intersect.
12. One part in every hundred.
13. A branch of mathematics dealing with symbols and the rules for manipulating them.
14. The amount of three-dimensional space an object occupies.

1. A relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.
2. The middle number in a sorted list of numbers.
3. A straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
4. The extent or measurement of a surface or piece of land.
6. To take away (a number or amount) from another to calculate the difference.
9. The space between two intersecting lines or surfaces at or close to the point where they meet.
10. A statement that the values of two mathematical expressions are equal.
11. A number system that uses a base of ten.
12. The extent to which something is probable; the likelihood of something happening or being the case.