About this worksheet
Column addition with numbers up to 999,999 for Year 5, over three pages and an answer page. Section 1 has eight five-digit additions, and the first four need no carrying. Section 2 has eight six-digit additions, such as 496,875 plus 387,659, followed by four three-number sums. Section 3 turns the method around: pupils find a missing digit in six finished calculations, then explain why 45,678 plus 54,322 is exactly 100,000. The answers give every total, each missing digit and a model explanation.
