Advanced Year 4 resources for subtracting two 4-digit numbers with more than 1 exchange (regrouping), extending the formal column subtraction method, a key KS2 Maths objective. Activities build deepening understanding of the exchange process across multiple columns, promoting reasoning and accuracy. This crucial small step supports mastery of formal subtraction and is vital for national curriculum calculation fluency. The CS Maths Scheme provides structured Base 10 and column format practice.
Full step description and curriculum objectives