Algebraic Expressions

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Across
  1. 2. a branch of mathematics that uses symbols
  2. 4. is the number part of a term with a variable attached
  3. 6. The letter used to represent a number
  4. 7. a part of an expression that is added to or subtracted from another term
Down
  1. 1. a symbol, usually a letter, used to represent a quantity
  2. 3. is a term with a number but no variable
  3. 5. a combination of variables, numbers, and at least one operation