Ответ:

  1. \(3,9658+16,0142=19,98\),

    \(1,7\cdot19,98=33,966\),

    \(7,1-5,68=1,42\),

    \(8,591:1,42=6,05\),

    \(33,966-6,05=27,916\).

  2. \(4:0,128=31,25\),

    \(31,25+14628,25=14659,5\),

    \(14659,5:1,011=14500\),

    \(14500\cdot0,00008=1,16\),

    \(1,16+6,84=8\),

    \(8:12,5=0,64\).

Ответ: а) \(27,916\); б) \(0,64\).