Maths Resources GCSE Worksheets


Tree Diagram Worksheet

Tree Diagram Worksheet

Help your students prepare for their Maths GCSE with this free tree diagram worksheet of 19 questions and answers

  • Section 1 of the tree diagram worksheet contains 12 skills-based tree diagram questions, in 3 groups to support differentiation
  • Section 2 contains 4 applied tree diagram questions with a mix of worded problems and deeper problem solving questions
  • Section 3 contains 3 foundation and higher level GCSE exam style tree diagram questions 
  • Answers and a mark scheme for all tree diagram questions are provided
  • Questions follow variation theory with plenty of opportunities for students to work independently at their own level
  • All questions created by fully qualified expert secondary maths teachers
  • Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards

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Tree diagram at a glance


Probability tree diagrams are a way of visually representing a combination of two or more events. Each branch is labelled with an outcome and its probability. Tree diagrams are useful as they help us clearly see all of the possible outcomes. We can find the probability of a combination of events happening by following the appropriate branches of the tree diagram and multiplying the probabilities along those branches.


Tree diagrams can be used both for independent events (e.g. spinning a fair spinner with different colours in each sector) and dependent events (conditional probability), where the probability of an event is affected by a previous event. 


Looking forward, students can then progress to additional probability worksheets, for example a Venn diagram worksheet or how to calculate probability worksheet.



For more teaching and learning support on probability our GCSE maths lessons provide step by step support for all GCSE maths concepts.

Do you have GCSE students who need additional support?

GCSE Maths Worksheets

There will be students in your class who require individual attention to help them achieve their target GCSE maths grade. In a class of 30, it’s not always easy to provide.

Help your students feel confident with exam-style questions and the strategies they’ll need to answer them correctly with personalised online one to one tutoring from Third Space Learning

Lessons are selected to provide support where each student needs it most, and specially-trained GCSE maths tutors adapt the pitch and pace of each lesson. This ensures a personalised revision programme that raises grades and boosts confidence.

GCSE Revision Programme