Ответ:

  1. \(\sqrt{115600}=340\).
  2. \(\sqrt{7.29}-3.25=2.7-3.25=-0.55\).
  3. \(\sqrt{42.25}-6.05=6.5-6.05=0.45\).
  4. \(\sqrt{0.1296}+4.06=0.36+4.06=4.42\).

Ответ: 1) 340; 2) −0,55; 3) 0,45; 4) 4,42.