问题 解答题
计算:
356+83+14453×99199×39+39125×25×32.
答案

①356+83+144,

=(356+144)+83,

=500+83,

=583;

②53×99,

=53×(100-1),

=53×100-53,

=5300-53,

=5247;

③199×39+39,

=39×(199+1),

=39×200,

=7800;

④125×25×32,

=(125×8)×(4×25),

=1000×100,

=100000.

问答题 简答题
单项选择题