Topic 1 Vocabulary

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Across
  1. 1. cannot be expressed in the form a/b
  2. 3. substituting a given number for each variable
  3. 4. a term that has no variable
  4. 6. a=b, b=a
  5. 7. this property allows you to add or multiply in any order and get the same answer
  6. 9. rational and irrational numbers together form this set
  7. 10. a numerical factor of a term
  8. 11. has two parts a base and an exponent
  9. 13. two numbers that are the same distance from zero on a number line but in opposite directions
  10. 14. the opposite of a number
  11. 15. any number, zero or higher
  12. 16. a number's distance from zero on a number line
  13. 19. a mathematical sentence that compares the values of two expressions using a symbol like < or >
Down
  1. 1. the sum of any number and zero equals the number
  2. 2. any example that can prove a statement false
  3. 5. opposite of any number
  4. 8. a number, variable, or the product of a number and one or more variables
  5. 12. any number that you can write in form a/b
  6. 17. have exactly the same variable factors
  7. 18. replace a number with its simplest form