问题
解答题
脱式计算.
|
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.
脱式计算.
|
(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.