Here are all the notes you need to teach all four decimal operations! I have personally used every single handout in my classroom. I love how interactive notebooks keep students organized and engaged. I have my students create a table of contents at the beginning of their notebook, and when I pass out the notebook page, they add the title of it to their table of contents.
The answer keys/models are included in this document. They will show you the answers as well as how I used them that day in class.