Dedicated Year 2 resources for adding two 2-digit numbers not across a 10 boundary, introducing formal written addition strategies without regrouping, a core KS1 Maths objective. Activities employ the CPA approach to build conceptual understanding of adding tens to tens and ones to ones, promoting varied fluency. This key small step supports mastery of early column addition and is vital for national curriculum expectations. The CS Maths Scheme provides structured Base 10 and column format practice.