Algebra Ch 1&2

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Across
  1. 2. a ratio between two sets of measurements
  2. 3. a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number
  3. 7. When we substitute a specific value for each variable, and then perform the operations
  4. 8. a letter or symbol used to represent a value that can change
  5. 11. overlapping region
  6. 14. the level of detail in a measurement and is determined by the smallest unit or fraction of a unit that you can reasonably measure.
  7. 16. terms with same values
  8. 18. an equation that is always true no natter what value is substituted for the variable.
  9. 19. a mathematical statement that two expressions are equal.
Down
  1. 1. the closeness of a measured value to the actual or true value
  2. 4. amount by which a measurement is permitted to vary from a specified value
  3. 5. a ratio of two quantities with different units
  4. 6. is a comparison of two quantities by division
  5. 9. a statements that make two ratios are equivalent
  6. 10. a statement that two quantities are not equal.
  7. 12. figures have exactly the same shape but not necessarily the same size
  8. 13. an equation that states a rule for a relationship among quantities
  9. 15. a rate with a second quantity of 1 unit
  10. 17. combined region