Here are a couple resources that can help with math homework! Both are outstanding.
https://www.youtube.com/user/dhabecker - videos of the problem set and some of the homework.
Oakdale Unified School District Web Page. Select Grade and then Lesson Module and Lesson Number. This is a video that will show how to complete a few problems on each of the homework pages. This page also has parent letters that are helpful. I will be having the kids put then in their binders!
FYI - both of these sites call Eureka Math -- Engage New York. They are the same program just with a different name!