25×37×4125×7×825×43×877×50×6.
网友回答
解:(1)25×37×4,
=25×4×37,
=100×37,
=3700;
(2)125×7×8,
=125×8×7,
=1000×7,
=7000;
(3)25×43×8,
=25×8×43,
=200×43,
=8600;
(4)77×50×6,
=77×(50×6),
=77×300,
=23100.
解析分析:(1)(2)(3)运用乘法交换律简算;
(4)运用乘法结合律简算.
点评:此题是考查四则混合运算,要仔细观察算式的特点,灵活运用一些定律进行简便计算.