分析:(1)運(yùn)用乘法分配律簡算;
(2)按照從左到右的順序計(jì)算;
(3)運(yùn)用加法交換了和結(jié)合律簡算;
(4)先把44分解成4×11,再運(yùn)用乘法結(jié)合律簡算;
(5)根據(jù)連續(xù)減去兩個(gè)數(shù),等于減去這兩個(gè)數(shù)的和簡算;
(6)先算小括號(hào)里面的減法,再算括號(hào)外的乘法,最后算除法.
解答:解:(1)(125+7)×8,
=125×8+7×8,
=1000+56,
=1056;
(2)3200÷25×4,
=128×4,
=512;
(3)3.27+6.4+2.73+4.6,
=(3.27+2.73)+(6.4+4.6),
=6+11,
=17;
(4)25×44,
=25×4×11,
=100×11,
=1100;
(5)6.45-0.58-1.42,
=6.45-(0.58+1.42),
=6.45-2,
=4.45;
(6)12×(324-285)÷26,
=12×39÷26,
=468÷26,
=18.
點(diǎn)評:此題是考查四則混合運(yùn)算,要仔細(xì)觀察算式的特點(diǎn),靈活運(yùn)用一些定律進(jìn)行簡便計(jì)算.