Dedicated Year 4 resources for pupils to make a whole with hundredths (decimal complements to 1), applying mental arithmetic to decimals, a core KS2 Maths objective. Activities build conceptual understanding of number bonds to one and promote varied fluency in calculation. This essential small step supports mastery of decimal arithmetic and is vital for meeting national curriculum expectations. The CS Maths Scheme provides structured calculation practice.
Full step description and curriculum objectives