Math Crossword Puzzle!

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Across
  1. 3. The Arithmetic Mean is the average of the numbers: a calculated "central" value of a set of numbers.
  2. 5. Pair Two numbers written in a certain order.
  3. 7. The values that divide a list of numbers into quarters.
  4. 9. The answer when two or more values are multiplied together.
  5. 13. Putting values where the letters are.
  6. 15. A symbol for a value we don't know yet. It is usually a letter like x or y.
  7. 17. Plane The plane containing the "x" axis and "y" axis.
  8. 18. Notion Writing a number to show the value of each digit
  9. 19. Inverse Another name for Reciprocal
  10. 20. In Algebra a term is either a single number or variable, or numbers and variables multiplied together.
  11. 22. A reduction in price.
  12. 23. At right angles (90°) to.
  13. 25. The result of adding two or more numbers.
Down
  1. 1. A fixed value.
  2. 2. In an up-down direction or position. Upright.
  3. 4. Parts per 100
  4. 6. Number A whole number that can be made by multiplying other whole numbers.
  5. 8. The exponent of a number says how many times to use that number in a multiplication.
  6. 10. The result of multiplying a number by an integer (not by a fraction).
  7. 11. The result of subtracting one number from another. How much one number differs from another.
  8. 12. The answer after we divide one number by another.
  9. 14. A graphical display where the data is grouped into ranges (such as "100 to 149", "150 to 199", etc), and then plotted as bars.
  10. 16. The reciprocal of a number is 1 divided by the number
  11. 21. The "middle" of a sorted list of numbers.
  12. 24. A ratio shows the relative sizes of two or more values.