Ответ:

  1. \(230 + 70 \cdot 3 = 230 + 210 = 440\).
  2. \((460 + 40) \cdot 2 = 500 \cdot 2 = 1000\).
  3. \((470 - 70) \cdot 2 = 400 \cdot 2 = 800\).
  4. \(380 - 80 \cdot 3 = 380 - 240 = 140\).
  5. \(600 + 180 : 6 + 9 = 600 + 30 + 9 = 639\).
  6. \(360 : (120 + 240) \cdot 4 = 360 : 360 \cdot 4 = 4\).

Ответ: 440; 1000; 800; 140; 639; 4.