(1)2.08÷0.4×0.7,
=5.2×0.7,
=3.64;
(2)40-7.5×3,
=40-22.5,
=17.5;
(3)5.5×12.7+5.5×7.3,
=(12.7+7.3)×5.5,
=20×5.5,
=110.