Algebra Unit 1

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Across
  1. 3. A mathematical statement showing that two expressions are equal.
  2. 8. Indicates that one quantity is smaller than another.
  3. 11. If two quantities are equal, one may be replaced by the other in any expression or equation.
  4. 14. Indicates that one quantity is larger than or equal to another.
  5. 17. Numbers that can be written as a fraction a/b, where a and b are integers.
  6. 19. Real numbers that cannot be written as a ratio of two integers.
  7. 20. A mathematical statement that compares two quantities using symbols such as <, >, ≤, or ≥.
  8. 21. The counting numbers {1,2,3,…}.
Down
  1. 1. Indicates that one quantity is smaller than or equal to another.
  2. 2. Simplifying an expression by adding or subtracting terms with the same variable part.
  3. 4. A mathematical phrase containing numbers, variables, and operations.
  4. 5. The set {0,1,2,3,…}.
  5. 6. A symbol, usually a letter, that represents a number or quantity.
  6. 7. Indicates that one quantity is larger than another.
  7. 9. The distance a number is from 0 on a number line.
  8. 10. A number that does not change and has no variable attached to it.
  9. 12. The rules used to simplify expressions in the correct order: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right).
  10. 13. Multiplying a number by each term inside a set of parentheses.
  11. 15. The numerical factor of a variable term.
  12. 16. The set of positive and negative whole numbers, including 0.
  13. 18. The set of all rational and irrational numbers.