解:(1)2012×
,
=(2011+1)×
,
=2010+
,
=2010
;
(2)
×78+0.5×1.25-730÷80
=1.25×78+0.5×1.25-73÷8,
=1.25×78+0.5×1.25-7.3×1.25,
=1.25×(7.8+0.5-7.3),
=1.25;
(3)56÷11×165÷7,
=(56÷7)×(165÷11),
=8×15,
=120;
(4)(
-
)×28+4
×7-3
×7,
=
×28-
×28+4
×7-3
×7,
=7-4+(4
-3
)×7,
=3+7,
=10.
分析:(1)把2012看作2011+1,运用乘法分配律简算;
(2)根据数字特点,把原式变为1.25×78+0.5×1.25-7.3×1.25,运用乘法分配律简算;
(3)调整运算顺序,即(56÷7)×(165÷11),计算即可;
(4)运用乘法分配律简算.
点评:此题考查了运算定律与简便运算,四则混合运算,注意分析式中数据,灵活运用所学的运算定律简便计算.