Ответ:

  1. \(736+30\cdot78-4524:13=736+2340-348=2728\).
  2. \(204+73\cdot50-7912:43=204+3650-184=3670\).
  3. \((7102-6238):54+7\cdot681:21=864:54+4767:21=16+227=243\).
  4. \((6412-5308):24+5\cdot872:20=1104:24+4360:20=46+218=264\).
  5. \(506\cdot42:7-2958:29\cdot3=3036-102\cdot3=3036-306=2730\).
  6. \(840\cdot91:13-3618:18\cdot8=5880-201\cdot8=5880-1608=4272\).

Ответ: 2728; 3670; 243; 264; 2730; 4272.