Order of Operations

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Across
  1. 1. Combining two or more numbers to get a total (8 letters)
  2. 4. The math symbol representing subtraction (5 letters)
  3. 5. (9+2)x 3=?
  4. 9. Bracket symbol used in math (11 letters)
Down
  1. 2. The 'D' in PEMDAS (8 letters)
  2. 3. The operation we perform after addition (11 words)
  3. 6. The 'E' in PEDMAS (8 letters)
  4. 7. Another term for multiplication (5 letters)
  5. 8. Math symbol representing addition (4 letters)
  6. 9. The order you solve problems with multiple operations (6 letters)