分析:(1)運(yùn)用減法的性質(zhì)簡算;
(2)運(yùn)用除法的性質(zhì)簡算;
(3)把原式變?yōu)?.27×99+3.27×10,運(yùn)用乘法分配律簡算為3.27×109,把109看作(100+10-1),再次運(yùn)用乘法分配律簡算;
(4)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.
解答:解:(1)3.68-0.82-0.18
=3.68-(0.82+0.18)
=3.68-1
=2.68;
(2)3.4÷(2.5×0.4)
=3.4÷1
=3.4;
(3)3.27×99+32.7
=3.27×99+3.27×10
=3.27×(99+10)
=3.27×109
=3.27×(100+10-1)
=3.27×100+3.27×10-3.27
=327+32.7-3.27
=327+(32.7-3.27)
=327+29.43
=356.43;
(4)[1-(
+
)]×36
=[1-
]×36
=
×36
=6.
點(diǎn)評(píng):此題考查了分?jǐn)?shù)的四則混合運(yùn)算,注意運(yùn)算順序和運(yùn)算法則,靈活運(yùn)用所學(xué)的運(yùn)算定律進(jìn)行簡便計(jì)算.