This handout clearly explains the rules for adding and subtacting decimal numbers. It gives example problems, and then provides practice problems for the students. The second page has students practice adding and subtracting decimals with one-step equations. Includes answer key.
I've taught a variety of subjects and grades, including eight years at 4/5, two years teaching middle school Language Arts, and this is my 4th year teaching 7th grade Math and Pre-algebra.