分析:(1)根據(jù)乘法結(jié)合律進(jìn)行簡(jiǎn)算;
(2)根據(jù)乘法交換律進(jìn)行簡(jiǎn)算;
(3)根據(jù)乘法分配律進(jìn)行簡(jiǎn)算;
(4)根據(jù)乘法分配律進(jìn)行簡(jiǎn)算;
(5)根據(jù)乘法分配律進(jìn)行簡(jiǎn)算;
(6)把16化成2×8,再根據(jù)乘法結(jié)合律進(jìn)行計(jì)算.
解答:解:(1)(125+17)×8
=125×8+17×8
=1000+136
=1136;
(2)35×8×125
=35×(8×125)
=35×1000
=35000;
(3)(20+4)×25
=20×25+4×25
=500+100
=600;
(4)35×37+65×37
=(35+65)×37
=100×37
=3700;
(5)75+75×299
=75×(299+1)
=75×300
=22500;
(6)16×125
=2×(8×125)
=2×1000
=2000.
點(diǎn)評(píng):此題考查了四則混合運(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(jiǎn)便計(jì)算.