Foundations of Algebra

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Across
  1. 1. A number that can't be written as a ratio; it has an infinite decimal that does not repeat
  2. 7. A math expression containing one or more variables
  3. 8. How numbers are grouped in a sum or product does not change the value
  4. 10. A number belonging to the set made up of the whole numbers and their opposites
  5. 13. A number belonging to the set of numbers that are used to count (1,2,3, etc.)
  6. 14. The constant preceding the variables in a product
  7. 17. The total count of digits used to express numbers in a system
  8. 18. A (superscript) number; tells how many times a factor is repeated
  9. 19. A math phrase that can't be determined true or false
  10. 20. The order in which numbers are added or multiplied does not change the value
Down
  1. 2. A number that can be written as a ratio of two integers in the form A/B with B ≠ 0
  2. 3. Replacing a quantity with its equal
  3. 4. A number or a variable, or an indicated product of a number and variable(s)
  4. 5. The distance from zero on the number line
  5. 6. a(b + c) = ab + ac, or a(b - c) = ab - ac
  6. 9. The opposite or negative of a number; the sum of a number and its additive inverse is zero
  7. 11. A letter or symbol used to represent an unknown
  8. 12. A numerical value with no variables
  9. 15. A number belonging to the set made up of zero and the natural numbers
  10. 16. The multiplicative ____ is the reciprocal of a number