Algebra

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Across
  1. 3. a collection of terms
  2. 5. to find the value by substituting the number for the pro numeral
  3. 7. something before a variable, usually a letter
  4. 8. makes something easier
Down
  1. 1. a number that doesn't change its value, only the direction (positive or negative)
  2. 2. is represented by a pro numeral
  3. 4. a single mathematic expression
  4. 6. tells you how many groups of the pro numeral or variable you have