Dedicated Year 4 resources for pupils to estimate answers to 4-digit addition and subtraction, using rounding (to the nearest 10, 100, or 1000) to check reasonableness, a core KS2 Maths objective. Activities build reasoning skills by requiring pupils to round before calculating, promoting mental agility and calculation verification. This essential small step supports mastery of calculation verification and is vital for meeting national curriculum expectations. The CS Maths Scheme provides structured rounding and checking tasks.
Full step description and curriculum objectives