algebra block vocab

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Across
  1. 2. letter that is used to represent one ot more numbers.
  2. 4. replace each variable in the expression with its value.
Down
  1. 1. numbers distence from zero jessus on a number line.
  2. 3. two numbers that are the same distence in opposite directions.
  3. 5. collection of numbers, variable, and operations.