分析:(1)先算小括號(hào)里面的除法,再算小括號(hào)里面的加法,最后算括號(hào)外的乘法;
(2)先算小括號(hào)里面的加法,再算中括號(hào)里面的除法,最后算括號(hào)外的除法;
(3)、(4)、(5)運(yùn)用乘法分配律簡(jiǎn)算;
(6)先算出小括號(hào)里面的得數(shù),然后再運(yùn)用乘法分配律簡(jiǎn)算.
解答:解:(1)35×(26÷2+7),
=35×(13+7),
=35×20,
=700;
(2)400÷[480÷(16+8)],
=400÷[480÷24],
=400÷20,
=20;
(3)78×26+26×22,
=(78+22)×26,
=100×26,
=2600;
(4)57×101-57,
=57×(101-1),
=57×100,
=5700;
(5)125×(8+4),
=125×8+125×4,
=1000+500,
=1500;
(6)(86+19)×(95-69),
=105×26,
=(100+5)×26,
=100×26+5×26,
=2600+130,
=2730.
點(diǎn)評(píng):乘法分配律是常用的簡(jiǎn)便運(yùn)算的方法,要熟練掌握,靈活運(yùn)用.