分析:(1)先算乘法,再算減法,最后算除法;
(2)先算除法,再按照從左向右的順序進(jìn)行計(jì)算;
(3)根據(jù)加法交換律和結(jié)合律進(jìn)行簡(jiǎn)算;
(4)先算加法,再算減法,最后算乘法;
(5)先算除法,再按照減法的性質(zhì)進(jìn)行簡(jiǎn)算.
解答:解:(1)(1-0.02×2)÷0.96
=(1-0.04)÷0.96
=0.96÷0.96
=1;
(2)0.5+1÷1+0.5
=0.5+1+0.5
=1.5+0.5
=2;
(3)0.26+0.8+0.74+0.2
=(0.26+0.74)+(0.8+0.2)
=1+1
=2;
(4)[0.9-(0.5+0.4)]×47
=[0.9-0.9]×47
=0×47
=0;
(5)2.76-0.84-0.32÷2
=2.76-0.84-0.16
=2.76-(0.84+0.16)
=2.76-1
=1.76.
點(diǎn)評(píng):考查了運(yùn)算定律與簡(jiǎn)便運(yùn)算,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)算定律簡(jiǎn)便計(jì)算.