Order of Operation

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Across
  1. 5. - working it out
  2. 8. - first step in order of operation
  3. 10. - work it out
  4. 11. grouping symbol
Down
  1. 1. repeated addition
  2. 2. operation that takes away
  3. 3. character used instead of words
  4. 4. worth
  5. 6. expression Has numbers, symbols, and operators
  6. 7. - addition
  7. 9. - understand in a certain way