问题 解答题
脱式计算.
408×5-2000125×3×8232+512÷86×(310+280)
答案

(1)408×5-2000,

=2040-2000,

=40;

(2)125×3×8,

=125×8×3,

=1000×3,

=3000;

(3)232+512÷8,

=232+64,

=296;

(4)6×(310+280),

=6×590,

=3540.

单项选择题 A1/A2型题
单项选择题 A1/A2型题