题目内容
想一想,做一做.
55+(367-289)
(75+225)÷60
350÷(19+51)
55+(367-289)
(75+225)÷60
350÷(19+51)
(1)55+(367-289)
=55+78
=133;
(2)(75+225)÷60
=300÷60
=5;
(3)350÷(19+51)
=350÷70
=5.
=55+78
=133;
(2)(75+225)÷60
=300÷60
=5;
(3)350÷(19+51)
=350÷70
=5.
练习册系列答案
相关题目