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Number bonds Year 1 – Addition and subtraction activities

What's included?

Maths activity sheets for Y1, plus an additional sheet with extension activities

Key Stage



Year 1


We’ve created these number bonds Year 1 activity sheets to match the small steps on the White Rose maths schemes of work.

The questions include varied fluency with reasoning with problem solving, and an additional sheet with extension activities.

Children are given a variety of pictorial examples to work with and questions to provoke deeper thinking.

Number bonds let children split numbers in useful ways. They show how numbers join together, and how they break down into component parts and so foster number sense.

Number bonds also provide a mental picture of the relationship between two numbers and it is these mental pictures that are the key to enabling children develop their number confidence.

Number bonds reflect the ‘part-part-whole’ relationship of numbers and they also develop problem-solving strategies such as ‘making ten’ with lots of practical equipment such as ten frames, multilink, Unifix cubes, Numicon, base 10, counters, coloured beads etc.

They’re also often referred to as ‘number pairs’ because they are simply the pairs of numbers that make up a given number. For example:

To 10: 1 + 9, 2 + 8, 3 + 7, 4 + 6, 5 + 5

To 20: 1 + 19, 2 + 18, 3 + 17, 4 + 16, 5 + 15

Number bonds Year 1 national curriculum links

Year 1 Number – Addition and Subtraction

  • Represent and use number bonds and related subtraction facts within 20.
  • Add and subtract 1-digit and 2-digit numbers to 20, including zero.

Maths focus

  • Children will find bonds to 20.
  • Children will learn the link between bonds to 10 and bonds to 20.

Maths mastery

  • Children can deduce bonds to 20 and explain the link with bonds to 10.
  • Children can recall common bonds to 20, eg 10 + 10, 1 + 19, 5 + 15.

Common errors

Rather than using known facts and developing instant recall, children may use an inefficient method, eg counting on or back.

Click here to download all of our Year 1 maths worksheets at once.

Number bonds Year 1 resources
Number bonds Year 1 – Addition and subtraction activities

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