David Berry's Vocab Crossword

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Across
  1. 2. A representation of an expression
  2. 3. Two numbers with an equal distance from zero on a number line
  3. 5. A mathematical phrase with numbers variables, and/or operations
  4. 6. A non-imaginary number that is not a decimal
  5. 7. A number's distance from zero on a number line
Down
  1. 1. One of two numbers whose sum is zero
  2. 4. A positive number including zero that is not a decimal