Math vocab.

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Across
  1. 5. the numbers on which we operate can be moved or swapped from their position to get the same answer 2 wds
  2. 8. A symbol for a number we don't know yet
  3. 9. to divide something or give a share or part of something 2 wds
  4. 12. any of the line segments from its center to its perimeter 4wds
  5. 14. to substitute a number for each variable and perform the arithmetic operations
  6. 15. any straight line segment that passes through the center of the circle 4 wds
Down
  1. 1. compares two values, showing if one is less than or greater than the other
  2. 2. How much one number differs from another
  3. 3. the aggregate of two or more numbers
  4. 4. the result of multiplying
  5. 6. a measure of how much space there is on a flat surface
  6. 7. the length of the outline of a shape
  7. 10. a statement that the values of two mathematical expressions are equal
  8. 11. The distance around the edge of a circle
  9. 13. the distance from zero 2wds