分析:(1)運(yùn)用加法交換律簡(jiǎn)算;(3)把32分解成8×4再運(yùn)用乘法結(jié)合律簡(jiǎn)算;(4)運(yùn)用乘法分配律簡(jiǎn)算;(5)根據(jù)連續(xù)減去兩個(gè)數(shù)等于減去這兩個(gè)數(shù)的和簡(jiǎn)算;其余題目按照先算乘除,再算加減,有括號(hào)的先算擴(kuò)號(hào)里面的運(yùn)算順序計(jì)算.
解答:解:(1)9.37-4.7+0.63,
=(9.37+0.63)-4.7,
=10-4.7,
=5.3;
(2)4.05÷0.81+4.2,
=5+4.2,
=9.2;
(3)0.125×32×0.25,
=0.125×8×4×0.25,
=(0.125×8)×(4×0.25),
=1×1,
=1;
(4)4.8×99+4.8,
=4.8×(99+1),
=4.8×100,
=480
(5)5.11-1.25-0.75,
=5.11-(1.25+0.75),
=5.11-2
=3.11;
(6)1.76-[(0.74+0.26)÷0.8],
=1.76-[1÷0.8],
=1.76-1.25,
=0.51.
點(diǎn)評(píng):運(yùn)算定律是常用的簡(jiǎn)便運(yùn)算的方法,要熟練掌握,靈活運(yùn)用.