I created this worksheet to use with my students to practice using the part-part-whole model to tackle math addition and subtraction word problems during our 2-3-digit addition and subtraction unit. They were familiar with part-part-whole from our basic units and we had reviewed recently using my Part-Part-Whole Puzzles Worksheet Pack. However, when I gave them the Valentine Story Problems worksheet last week, they didn't apply the part-part-whole model/strategy to solve their word problems, so that is why I created this sheet. It guides them along and reminds them to use the part-part-whole model to solve and determine if addition or subtraction is needed.I think this will really help it all make sense to the kiddos! I plan to use my Shamrock Story Problems in the upcoming weeks to review and have the kids draw their own part-part-whole models on their paper. I hope this can help you and your students too! Enjoy!