Room 2 Crossword Puzzle: Math Crash Course Edition

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Across
  1. 4. Bars with numerical labels
  2. 6. The difference between the
  3. 7. The largest factor of two or more numbers
  4. 8. and lower quartile
  5. 11. Two inverse numbers
  6. 12. A number or variable in an expression.
  7. 16. The surface of a shape.
  8. 17. Plot Displays a summary of data.
  9. 18. Where a, b, c, and any other variables stand for numbers
  10. 20. The intersection of x and y on a coordinate plane
Down
  1. 1. A number in a set that is much larger or smaller than the rest
  2. 2. The exact location of an area represented by a dot.
  3. 3. Rules that show how to solve an expression or equation.
  4. 5. The largest number in a data set.
  5. 9. The smallest common multiple of two or more numbers
  6. 10. The middle number of a set of numbers from least to greatest.
  7. 13. An equation showing two ratios are equivalent.
  8. 14. The amount of a given number or variable.
  9. 15. To arrange or move something.
  10. 19. A set of whole numbers and their opposites.