问题 解答题
用简便方法计算:
125×32×2578×10325×36×11
14×37+63×14(25+125)×85×4×20×25.
答案

(1)125×32×25,

=125×8×4×25,

=(125×8)×(4×25),

=1000×100,

=100000;

(2)78×103,

=78×(100+3),

=78×100+78×3,

=7800+234,

=8034;

(3)25×36×11,

=25×4×9×11,

=(25×4)×(9×11),

=100×99,

=9900;

(4)14×37+63×14,

=14×(37+63),

=14×100,

=1400;

(5)(25+125)×8,

=25×8+125×8,

=200+1000,

=1200;

(6)5×4×20×25,

=4×25×5×20,

=(4×25)×(5×20),

=100×100,

=10000;

单项选择题 A3/A4型题
问答题 简答题