You can stop your search for a subtracting across 100 teaching resource by downloading and using our Year 3 Subtract Two Numbers (Across a 100) Modelling PowerPoint. This resource includes a variety of questions from varied fluency, to reasoning and problem-solving examples. Each question is followed by an answer slide for children to compare their answers to.

Use this at the start of your lesson to guide children through question styles they might come across in our accompanying resources for this lesson. Alternatively, you could add this into an intervention program to support children in this skill, or display a question on screen in class as a challenge activity.