7th Math

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Across
  1. 2. the sum of a number and its opposite.
  2. 4. the set of whole numbers and their opposites
  3. 5. numbers: a number that can be written as a fraction were a and b are integers and b equals zero
  4. 7. rearrange
Down
  1. 1. the value that you add to a number to get zero
  2. 3. switch
  3. 6. value: the distance away from zero.