Targeted Year 2 resources for adding across a 10 boundary (e.g., 17 + 5), focusing on bridging strategies, a core KS1 Maths objective for mental arithmetic. Activities employ the CPA approach to build conceptual understanding of partitioning to make the next multiple of ten, promoting reasoning. This crucial small step supports mastery of efficient addition and is vital for national curriculum calculation fluency. The CS Maths Scheme provides structured ten frame and number line practice.