Practical Year 4 resources for subtracting two 4-digit numbers using physical and pictorial models, supporting the transition to formal methods, a core KS2 Maths objective. Activities employ the CPA approach to build conceptual understanding of exchanging when subtracting thousands, hundreds, tens, and ones, promoting reasoning. This essential small step supports mastery of multi-digit subtraction and is vital for meeting national curriculum expectations. The CS Maths Scheme provides structured Base 10 and pictorial practice.
Full step description and curriculum objectives