分析:(1)運(yùn)用乘法結(jié)合律簡(jiǎn)算;
(2)運(yùn)用乘法分配律的逆運(yùn)算簡(jiǎn)算;
(3)運(yùn)用乘法分配律簡(jiǎn)算;
(4)運(yùn)用乘法交換律簡(jiǎn)算;
(5)把101看做100+1,運(yùn)用乘法分配律簡(jiǎn)算;
(6)運(yùn)用加法交換律與結(jié)合律簡(jiǎn)算.
解答:解:(1)56×25×40,
=56×(25×40),
=56×1000,
=56000;
(2)23×65+65×77,
=(23+77)×65,
=100×65,
=6500;
(3)25×(40+4),
=25×40+4×25,
=1000+100,
=1100;
(4)125×13×8,
=125×8×13,
=1000×13,
=13000;
(5)43×101,
=43×(100+1),
=4300+43,
=4343;
(6)423+386+77+114,
=(423+77)+(386+114),
=500+500,
=1000.
點(diǎn)評(píng):完成本題要注意分析式中數(shù)據(jù),運(yùn)用合適的簡(jiǎn)便方法計(jì)算.