5248+689-248
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/05 19:13:51
5248+689-248
5248+689-248
5248+689-248
5248+689-248
=(5248-248)+689
=5000+689
=5689
5689
5689
5689
5248+689-248
=5248-248+689
=5000+689
=5689
5248+689-248
5248+689-248
5248+689-248
5248+689-248
=(5248-248)+689
=5000+689
=5689
5689
5689
5689
5248+689-248
=5248-248+689
=5000+689
=5689