Dedicated Year 2 resources for finding 10 more, 10 less than any two-digit number, a key KS1 Maths objective for place value and mental calculation. Activities build conceptual understanding of how the tens digit changes and promote varied fluency in mental agility. This essential small step supports mastery of the number sequence and is vital for meeting national curriculum expectations. The CS Maths Scheme provides structured hundred square and Base 10 practice.