分析:(1)根據(jù)加法交換律和結(jié)合律進(jìn)行簡(jiǎn)算;
(2)根據(jù)乘法交換律和結(jié)合律進(jìn)行簡(jiǎn)算;
(3)根據(jù)減法的性質(zhì)進(jìn)行簡(jiǎn)算;
(4)根據(jù)乘法交換律進(jìn)行簡(jiǎn)算;
(5)(6)根據(jù)乘法分配律進(jìn)行簡(jiǎn)算.
解答:解:(1)5.48+8.73+4.52+1.27,
=(5.48+4.52)+(8.73+1.27),
=10+10,
=20;
(2)0.4×1.25×25×8,
=(0.4×25)×(1.25×8),
=10×10,
=100;
(3)17.5-4.25-5.75,
=17.5-(4.25+5.75),
=17.5-10,
=7.5;
(4)276×
÷27.6,
=276÷27.6×
,
=10×
,
=
;
(5)9.25×9.9+92.5%,
=0.925×99+0.925,
=0.925×(99+1),
=0.925×100,
=92.5;
(6)
×
+
÷75%,
=
×
+
×
,
=
×(
+
),
=
.
點(diǎn)評(píng):完成本題要注意分析式中數(shù)據(jù),運(yùn)用合適的簡(jiǎn)便方法計(jì)算.