Dedicated Year 1 resources for partitioning numbers into tens and ones within 20, a core KS1 Maths objective for place value. Activities employ the CPA approach to build conceptual understanding of the two-digit structure, using Base 10 and ten frames. This crucial small step supports reasoning in calculation and is vital for national curriculum mastery of the base-10 system to 20. The CS Maths Scheme provides structured partitioning and recombining tasks.
Full step description and curriculum objectives