问题
解答题
脱式计算
(351-295)×2
850-350÷7
725-725÷25
654-(128+293)
答案
(1)(351-295)×2
=56×2
=112;
(2)850-350÷7
=850-50
=800;
(3)725-725÷25
=725-29
=696;
(4)654-(128+293)
=654-421
=233.
脱式计算
(351-295)×2
850-350÷7
725-725÷25
654-(128+293)
(1)(351-295)×2
=56×2
=112;
(2)850-350÷7
=850-50
=800;
(3)725-725÷25
=725-29
=696;
(4)654-(128+293)
=654-421
=233.