Across
- 2. Substituting a given number for each variable
- 5. two numbers whose product is 1
- 6. the set of numbers 0,1,2,3,4,5…
- 7. a statement that solves a problem or explains how to solve a problem
- 10. an example that shows a conjecture is false
- 12. whole numbers and their opposites
- 13. a statement that compares two quantities
- 15. a symbol like x or y that is used in mathematical expressions
- 17. a mathematical notation indicating the number of times a quantity is multiplied by itself
- 18. terms with exactly the same variable factors in a variable expression
- 19. a number, a variable, or the product of a number and a variable
- 20. adding the opposite
Down
- 1. that cannot be expressed in the form a/b, where a and b are integers and b=0
- 3. the distance that a number is from zero on the number line
- 4. A mathematical phrase that contains operations, numbers, and or variables
- 8. The numerical factor when a term has a variable
- 9. A quantity that does not vary
- 11. to write an expression in a simpler form
- 14. the set of numbers that includes rational and irrational numbers
- 16. A mathematical sentence with an equal sign