问题
解答题
计算.
105÷7+18
520÷(45÷9)
512-112÷4
(603-246)÷7.
答案
(1)105÷7+18,
=15+18,
=33;
(2)520÷(45÷9)
=520÷5,
=104;
(3)512-112÷4,
=512-28,
=484;
(4)(603-246)÷7,
=357÷7,
=51.
计算.
105÷7+18
520÷(45÷9)
512-112÷4
(603-246)÷7.
(1)105÷7+18,
=15+18,
=33;
(2)520÷(45÷9)
=520÷5,
=104;
(3)512-112÷4,
=512-28,
=484;
(4)(603-246)÷7,
=357÷7,
=51.