Tarsia Puzzle | Number Bonds To 20 | Year 1

Deepen your Year 1 pupils' understanding of addition and subtraction with this challenging tarsia puzzle.

Mix up the triangles in this tarsia puzzle and task your pupils to solve the number bonds to 20 calculations and match the questions and answers.

This adding equal groups tarsia puzzle can be used as an individual task to challenge pupils, or in partners or small groups to encourage mathematical conversations.

Often, teachers try to find fun ways for pupils to explore individual concepts. This tarsia puzzle provides an alternative to traditional worksheets when practising number bonds to 20.

You’ll find a template page for pupils to rebuild the number bonds to 20 tarsia puzzle. Blank templates can also be used as an additional task for pupils to create a number bonds tarsia puzzle of their own.

Year 1 number bonds to 20 tarsia worksheet

• Finding pairs of numbers that total 20

• Finding missing numbers in calculations to 20