Ответ:

  1. \(48+7+3=48+10=58\).
  2. \(37+9+3=37+12=49\).
  3. \(12+8+26+4=20+30=50\).
  4. \(37+13+7+3=50+10=60\).
  5. \(64+18+6+12=64+6+18+12=70+30=100\).
  6. \(71+16+4+9=71+9+16+4=80+20=100\).