Develop secure number sense to 20 with this progressive printable maths resource for Reception and early Year 1. This 48-page pack includes 40 pupil activity pages that move from recognising and counting numbers to representing and writing them, before extending into teen numbers, ten + ones, missing numbers, number order, comparing, one more and one less, number-line work and mixed review. Unlike a set of repeated number-tracing sheets, the activities are organised to build understanding across several connected representations and number relationships. Also included are a Teacher / Parent Guide, a Progress & Usage Guide, and 6 pages of answer keys. Skills covered include number recognition, counting to 20, numeral formation, ten frames, double ten frames, teen numbers, ten + ones, missing numbers, before and after, ordering, comparing, one more and one less, number lines, number relationships, and mixed review. Suitable for Reception, early Year 1, home education, tuition, small-group teaching and targeted intervention. Approximate learner age: 4.5–6.5 years, depending on readiness. File details: 48 A4 printable pages, PDF format, portrait orientation, non-editable, answer keys included. This is a digital teaching resource. No physical product is supplied.