kimon algebra

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Across
  1. 1. You have to solve this.
  2. 2. The result when you add numbers.
  3. 3. The result when you multiply numbers.
  4. 5. The result when you subtract numbers.
  5. 6. If you open it ,you must close it.
Down
  1. 1. The opposite of negative.
  2. 4. It is the addition.