Basic Addition and Subtraction Within 20 – Number Line Support Worksheet

This engaging worksheet helps pupils practise basic addition and subtraction facts up to 20 with the support of a number line at the top of the page. It’s ideal for developing early number sense, supporting fluency, and building confidence in mental arithmetic.

This 12 page worksheet includes:

A clearly labelled number line (0–20) at the top of the page to aid visual learning.

A mix of simple addition and subtraction problems designed for independent or guided practice.

Includes 6 x question pages and 6 x answers pages

Perfect for:

KS1 / Year 1–2 pupils/ SEND

Early maths intervention or catch-up

Homework, classwork, or morning starters

Learning objectives:

• Add and subtract numbers within 20 using a number line.
• Develop understanding of counting forwards and backwards.
• Improve fluency and accuracy with basic number facts.

Format:

Printable A4 worksheet (black and white for easy photocopying).

Suitable for classroom or home use.

Keywords:
Addition | Subtraction | Number Line | Within 20 | KS1 Maths | Early Years | Fluency | Practice Worksheet | Mental Maths