Dedicated Year 5 resources for pupils to check answers to multi-digit addition and subtraction using the inverse operation and estimation/rounding, a core KS2 Maths objective. Activities build strong reasoning skills by requiring pupils to verify calculation accuracy through complementary operations and approximate values. This essential small step supports mastery of calculation verification and is vital for national curriculum expectations. The CS Maths Scheme provides structured inverse operation and rounding tasks.
Full step description and curriculum objectives