问题
解答题
|
答案
(1)512-112÷4,
=512-28,
=484;
(2)105÷7×18,
=15×18,
=270;
(3)520÷(45÷9),
=520÷5,
=104;
(4)(603-246)÷7,
=357÷7,
=51.
|
(1)512-112÷4,
=512-28,
=484;
(2)105÷7×18,
=15×18,
=270;
(3)520÷(45÷9),
=520÷5,
=104;
(4)(603-246)÷7,
=357÷7,
=51.