问题
解答题
脱式计算
|
答案
(1)320-120÷2,
=320-60,
=260;
(2)400÷8×9,
=50×9,
=450;
(3)(300-165)÷5,
=135÷5,
=27;
(4)200+100÷5,
=200+20,
=220.
脱式计算
|
(1)320-120÷2,
=320-60,
=260;
(2)400÷8×9,
=50×9,
=450;
(3)(300-165)÷5,
=135÷5,
=27;
(4)200+100÷5,
=200+20,
=220.