Mathematics

3. A number consisting of an integer and a fraction.
4. A comparison of two quantities by division.
7. Numbers that include zero and all the positive integers.
10. A part per hundred, often represented by the symbol %.
11. The number that is raised to a power in exponentiation.
12. Whole numbers and their opposites.
13. To change from one form or function to another, such as fractions to decimals.
14. A fraction where the numerator is greater than the denominator.
17. A number that uses a decimal point to show a part of a whole.
18. The product of a number and any integer.
20. Figures that are meaningful in terms of accuracy and precision.
21. The quality of being exact in measurement and significant figures.

1. The bottom number in a fraction that shows how many equal parts the item is divided into.
2. A mathematical notation indicating the number of times a number is multiplied by itself.
5. Numbers without fractions; integers.
6. A number greater than 1 that has no divisors other than 1 and itself.
8. An approximate calculation or judgment of the value, number, quantity, or extent of something.
9. A decimal in which one or more digits repeat infinitely.
15. The measure of the extent of a two-dimensional surface or shape in a plane.
16. Numbers that can be expressed as a fraction of two integers.
18. A system of measurement based on the meter, kilogram, and second.
19. A number that divides into another number without leaving a remainder.