计算以下问题(能简化的应该简化)(1)725×101-725(2)2.5×2.72+0.24×2.5+1.04×2.5(3)200-。

=725×(101-1),

=725×100,

=28;

(2)2.5×2.72+0.24×2.5+1.04×2.5,

=2.5×(2.72+0.24+1.04),

=2.5×4,

=10;

(3)200-120÷1.6×1.2,

=200-(120÷4)×(1.2÷0.4),

=200-30×3,

=200-90,

=110.