Original PromptThis resource focuses on mastering three-digit subtraction with regrouping, a vital skill in basic arithmetic. It begins with an introduction to the significance of place value in our number system, explaining how regrouping is necessary when subtracting larger digits from smaller ones. The material includes clear, step-by-step worked examples, guiding students through the subtraction process while highlighting common pitfalls. It features guided and independent practice opportunities, where learners can apply their understanding and check their reasoning through metacognitive questions. Additionally, contrasting scenarios help students discern when regrouping is required, emphasizing the importance of strategic thinking in problem-solving. The resource concludes with a challenge encouraging students to create their own problems, promoting deeper engagement with the concepts explored.