This comprehensive packet contains resources to help you teach four strategies students can use to solve subtraction problems with regrouping (Open Number Line, Zero Zapper, Decomposing, and Borrowing). These strategies help students develop a deeper conceptual understanding of subtraction and give them tools to avoid common subtraction pitfalls. Included with this product are: four printable posters that clearly show each strategy, a printable of all four strategies on one page (great resource for students and parents!), step-by-step instructions for each strategy that can be printed/glued into student math notebooks, 2 practice pages and 1 homework page for each strategy (word problems included), problem solving pages, and a set of 18 subtraction task cards with a recording sheet that are great for independent or small group practice. Answer keys are included.