解:(1)2.144÷3.2+4.32,
=0.67+4.32,
=4.99;
(2)9.66÷2.3÷0.3,
=4.2÷0.3,
=14;
(3)5.5×0.25×1.4,
=5.5×0.25×2×0.7,
=(5.5×0.7)×(0.25×2),
=3.85×0.5,
=1.925;
(4)1.25×2.47×8,
=1.25×8×2.47,
=10×2.47,
=24.7;
(5)27×10.2,
=27×(10+0.2),
=27×10+27×0.2,
=270+5.4,
=275.4;
(6)4.8×3.8+6.2×4.8,
=4.8×(3.8+6.2),
=4.8×10,
=48.
分析:(1)先算除法,再算加法;
(2)按照從左到右的順序計(jì)算;
(3)先把1.4分解成0.7×2,再運(yùn)用乘法結(jié)合律簡算;
(4)運(yùn)用乘法交換律簡算;
(5)先把10.2分解成10+0.2,再運(yùn)用乘法分配律簡算;
(6)運(yùn)用乘法分配律簡算.
點(diǎn)評:本題考查了四則混合運(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.