Frustrating Crossword

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123456
Across
  1. 1. (100-37)x4+7
  2. 2. 3x(66/3)+29
  3. 3. 60-35+27-23
  4. 4. 7x8/4x9
  5. 5. (35+7)x5-35
Down
  1. 1. (9-4)x5
  2. 2. 2x(33+3)+27
  3. 3. 70-(3+8)x4
  4. 4. 160+40/5-27
  5. 6. 30+85/5+27