№2 а)( 6, 39 - 2, 1028 ) : ( 18 - 5. 3408 - 11, 3022 : 1, 35 ) б)( 7, 38 : 4, 5 * ( 15, 2 * 0, 2 ))
А) (6,39 - 2,1028) : (18 - 5.3408 - 11.3022 : 1.35) = 1 1) 6.39 - 2.1028 = 4.2872 2) 11.3022 : 1.35 = 8.372 3) 18 - 5.3408 = 12.6592 4) 12.6592 - 8.372 = 4.2872 5) 4.2872 : 4.2872 = 1 б) 7.38 : 4.5 * ( 15.2 * 0.2) = 4.9856 1) 15.2 * 0.2 = 3.04 2) 7.38 : 4.5 = 1.64 3) 1.64 * 3.04 = 4.9856