Kingsley's Math vocab puzzle

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Across
  1. 3. a shape that consists of 4 sides
  2. 7. the top and bottom have no common factors other than 1
  3. 9. a quantity representing the power given to a number or expression usually expressed as a raised symbol above the number
  4. 10. The middle number of the data
  5. 12. a diagram consisting of rectangles whose area is proportional to the frequency of a variable
  6. 14. expressions that work the same even though they look different
  7. 15. the distance of a number from zero on a number line
Down
  1. 1. a two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis
  2. 2. a number whose value does not change
  3. 4. the number of times the data value occurs
  4. 5. expressed as a number or numbers
  5. 6. a fact or a rule written with mathematical symbols
  6. 8. a number that is a factor of two or more numbers
  7. 11. The horizontal lines of a coordinate system
  8. 13. a number or ratio expressed as a fraction of 100