Revision resources for Year 5 pupils to recap subtracting more than 4-digit numbers (up to 6-digits), reinforcing the formal column subtraction method, a core KS2 Maths objective. Activities promote varied fluency and accuracy in multi-digit subtraction with exchanges, securing this key calculation skill. This essential revision small step supports mastery of calculation and is vital for national curriculum expectations. The CS Maths Scheme provides structured columnar practice.