Key Stage Hub
7+

Year 2 · Addition & Subtraction

Adding Within 20 - Self-Marking Activity

Curriculum-aligned workbook

Key Stage HubY1-N-AS-2
Page 1 of 3
Key Stage 1MathsInteractive ActivitiesWorking Towards

Adding Within 20 - Self-Marking Activity

4.7 · 512 reviews · 33,760 downloads · 12 min · v1, updated 3 Sep 2026

Play activity

Free tier: 10 of 10 downloads left this month (0 used).

  • Interactive· 1.2 MB
  • PDF· 1.2 MB

Prefer a full page?

Open the worksheet on its own page with larger answer fields and instant marking.

Open the full worksheet

Open this resource

Loading the content…

Adding Within 20 - Self-Marking Activity is fully aligned to the National Curriculum and provided at three differentiation levels (Working Towards, Expected, Greater Depth). Printed or projected, it is classroom-ready with no prep beyond a photocopier.

Includes an answer sheet, a Working Towards scaffolded version and a Greater Depth extension. Paid plans also include the editable Word version so you can swap names, numbers and context.