Order of Operations Obstacles

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Across
  1. 2. 15 + 4 × 5
  2. 4. 4^ (8 × 5)
  3. 5. (5^ + 6)-(8 - 2)
  4. 7. 10 ÷ (5 - 3) + 2
  5. 9. (51 - 1)2 - 65
Down
  1. 1. (6 ÷ 2) + 2^
  2. 2. 3^ + (5 × 1)
  3. 3. (6^ - 10) × 2
  4. 6. (2^ + 1)^ - 30
  5. 8. 3^ + 4 × 6