These related facts Year 1 activity sheets have been created 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.

National curriculum links

Year 1 Number – Addition and Subtraction

• Represent and use number bonds and related subtraction facts within 20.

Maths focus

• Children will find and revise addition and subtraction facts to 20.

Maths mastery

• Children can quickly recall their addition and subtraction facts to 20.
• Children can link addition and subtraction facts to those within 10 to support them with higher numbers.

Common errors and conceptual obstacles

• Children may miscount when trying to make 20.
• Children may not understand the relationship between addition and subtraction.
• There may be confusion with numbers on the line and the number of steps they take.
• There may be confusion hearing the teens numbers.

Example related facts Year 1 questions

Help Saffy complete the addition sentences using the ten frames:

• 13 + 2 =
• 12 + ? =
• 10 + ? =

Help Danny write a number sentence for 15 – ? =

How many fingers are the children holding up? Can you show this as a part-whole diagram?

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

Similar resources

• Morning Challenge – Free morning tasks for Years 1-6
• Equivalent fractions Year 4​ – Active maths game lesson plan
• KS1 algebra – Addition and subtraction worksheet
• Animal heroes – Cross-curricular KS2 lesson plan
• Roman numerals worksheet – Extra challenge for Y4 and Y5 pupils