math

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Across
  1. 4. (+) An operation that tells how many objects there are when two sets are combined.
  2. 5. The range of a set of data is the difference between the highest and lowest values.
  3. 6. Two or more straight lines on a flat surface that do not intersect
  4. 7. The coordinate plane is divided by its axes into four quadrants.
Down
  1. 1. A ratio compares two quantities by division.
  2. 2. A polygon with five sides.
  3. 3. To make smaller.
  4. 5. The reciprocal of a nonzero number is its multiplicative inverse, that is, the reciprocalof x is _1x.
  5. 6. The result of multiplying. For example,the product of 4 and 5 is 20.