leilani's crossword puzzle

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Across
  1. 3. two integers are opposites
  2. 5. the mirror image produced by flipping.
  3. 6. the four regions in a coordinate plane.
  4. 7. any number from the set -4 -3 -2 -1 -0 1 2 3 4
Down
  1. 1. a number that is greater than zero
  2. 2. a number that it less than zero.
  3. 4. thedistance between a number.
  4. 5. a number that can be written as fraction.