解:(1)327-59+33,
=327+33-59,
=360-(60-1),
=360-60+1,
=301;
(2)(8×0.8)×125,
=8×(0.8×125),
=8×100,
=800;
(3)15×[(48+24)÷18],
=15×[72÷18],
=15×4,
=60;
(4)24×(
),
=24×
-24×
,
=21-10,
=11;
(5)
×
+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
.
分析:(1)運(yùn)用加法交換律和結(jié)合律,先把327和33結(jié)合湊成整數(shù),然后把59看作60-1,進(jìn)行簡(jiǎn)算;
(2)用乘法結(jié)合律簡(jiǎn)算;
(3)按運(yùn)算順序計(jì)算,先算小括號(hào)內(nèi)的,再算中括號(hào)內(nèi)的,最后算括號(hào)外的;
(4)用乘法分配律簡(jiǎn)算;
(5)把原式變?yōu)?img class='latex' src='http://thumb.zyjl.cn/pic5/latex/26482.png' />×
+
×
,然后用乘法分配律的逆運(yùn)算簡(jiǎn)算.
點(diǎn)評(píng):做計(jì)算題時(shí),注意審題,從數(shù)字特點(diǎn)出發(fā),運(yùn)用運(yùn)算定律和性質(zhì),以及其它運(yùn)算技巧,巧妙靈活地解答.