问题
解答题
|
答案
(1)172-32×5,
=172-160,
=12;
(2)72÷24+36,
=3+36,
=39;
(3)24×(524-489),
=24×35,
=840;
(4)450÷(18-9),
=450÷9,
=50.
|
(1)172-32×5,
=172-160,
=12;
(2)72÷24+36,
=3+36,
=39;
(3)24×(524-489),
=24×35,
=840;
(4)450÷(18-9),
=450÷9,
=50.