Across
- 2. a ratio that compares two quantities measured in different units
- 3. numbers that are being multiplied
- 6. one of two numbers whose product is 1; also called multiplicative inverse
- 7. the amount that a number increases or decreases stated as a percent
- 10. amount taken off of an item
- 12. a whole number greater than 1 that has exactly two factors, 1 and itself
- 14. the set of whole numbers and their opposites
- 16. a rate in which the second quantity in the comparison is one unit
- 17. the product of any number and a whole number
- 19. process used to write a number as the product of prime numbers
- 21. money earned for making a sale; usually a percent of the selling price
Down
- 1. the largest factor two numbers have in common
- 4. a decimal in which one or more digits repeat infinitely
- 5. a ratio comparing a number to 100
- 8. a number greater than 1 that has more than two whole-number factors
- 9. amount earned or owed for the use of money; usually written as a percent
- 11. operations that undo each other—addition and subtraction, or multiplication and division
- 13. the least number, other than zero, that is a multiple of two or more given numbers
- 15. a decimal number that comes to an end
- 18. These types of figures have the same shape but not necessarily the same size.
- 20. any number that can be expressed as a ratio of two integers