Ответ:

  1. \((a+546)-328=a+(546-328)=a+218\).
  2. \((c+961)-592=c+(961-592)=c+369\).
  3. \((151+b)-109=b+(151-109)=b+42\).
  4. \(272-(125+y)=272-125-y=147-y\).
  5. \(925-(p+735)=925-p-735=190-p\).
  6. \(707-(n+534)=707-n-534=173-n\).

Ответ: 1) \(a+218\); 2) \(c+369\); 3) \(b+42\); 4) \(147-y\); 5) \(190-p\); 6) \(173-n\).