Informal Algebra Vocab Test 1

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Across
  1. 5. The number one is neither prime nor composite. It is called the __________.
  2. 6. A combination of numbers, operators, grouping symbols, and variables which can be evaluated or simplified.
  3. 7. A number which has more than two factors.
  4. 8. A set with a never ending number of elements.
  5. 9. An example that proves a statement false.
  6. 13. The smallest positive integer that is divisible by two numbers.
  7. 16. The number used as a factor in an exponential expression.
  8. 18. Every member of a set is also a member of a larger or equal set.
  9. 19. A set with a countable number of elements.
  10. 22. A symbol, usually a letter, used to represent an unknown.
  11. 24. A quantity whose value does NOT change.
  12. 26. The greatest factor that divides evenly into two numbers.
  13. 27. Under a given operation if the outcome of the operation on any two members of the set is also a member of the set.
Down
  1. 1. Parts of an expression separated by a + or −.
  2. 2. When you are multiplying like bases you will ____ the exponents.
  3. 3. A collection of objects
  4. 4. A number which has only two factors, 1 and itself.
  5. 5. The set of all elements which are in both sets A and B.
  6. 9. The numeric factor of a product which includes a variable.
  7. 10. Distance a number is from zero
  8. 11. A set of rules for simplifying expressions.
  9. 12. Three dots inside the braces - shows the numbers in the set continue on without end.
  10. 14. Two or more quantities which are multiplied.
  11. 15. A natural number which indicates how many times a base is used a factor.
  12. 17. The set of all elements that are in sets A or B.
  13. 20. Each item in a set
  14. 21. A set with no elements.
  15. 23. A set is written by enclosing the elements within ________.
  16. 25. A set with no elements.