问题 解答题
合理,灵活的计算下面各题
25×4410-(4+0.05)2.32-1.5+3.68-2.5
420+28(4800÷75+36)×12(2007+2007+2007+2007)×25.
答案

(1)25×44,

=25×4×11,

=100×11,

=1100;

(2)10-(4+0.05),

=10-4.05,

=5.95;

(3)2.32-1.5+3.68-2.5,

=(2.32+3.68)-(1.5+2.5),

=6-4,

=2;

(4)420+28=448;

(5)(4800÷75+36)×12,

=(64+36)×12,

=100×12,

=1200;

(6)(2007+2007+2007+2007)×25,

=(2007×4)×25,

=2007×(4×25),

=2007×100,

=200700.

问答题
单项选择题