解:(1)4.8×0.25,
=1.2×(4×0.25),
=1.2×1,
=1.2;
(2)2.33×0.5×4,
=2.33×(0.5×4),
=2.33×2,
=4.66;
(3)1.2×2.5+0.8×2.5,
=(1.2+0.8)×2.5,
=2×2.5,
=5;
(4)3.7÷1.25÷8.
=3.7÷(1.25×8),
=3.7÷10,
=0.37.
分析:(1)4.8×0.25,轉(zhuǎn)化為:1.2×4×0.25,再運(yùn)用乘法結(jié)合律進(jìn)行簡(jiǎn)算;
(2)2.33×0.5×4,運(yùn)用乘法結(jié)合律進(jìn)行簡(jiǎn)算;
(3)1.2×2.5+0.8×2.5,運(yùn)用乘法分配律進(jìn)行簡(jiǎn)算;
(4)3.7÷1.25÷8.根據(jù)除法的運(yùn)算性質(zhì)進(jìn)行簡(jiǎn)算.
點(diǎn)評(píng):此題考查的目的理解掌握乘法的運(yùn)算定律和除法的運(yùn)算性質(zhì),并且能夠運(yùn)用這些運(yùn)算定律和運(yùn)算性質(zhì)對(duì)小數(shù)四則混合運(yùn)算進(jìn)行簡(jiǎn)便計(jì)算.