Free Year 4 Probability worksheets (printable PDF)
Free printable Year 4 probability worksheets, organised using England's year-group terminology and an age-equivalent library level (Key Stage 2), covering chance, likelihood and simple probability. Pick a set below to print or save as a PDF, or generate a fresh one. Answers are computed in code from the exact questions on the page, and the printable answer key is free. No login is needed to use the worksheet.
What is probability?
Probability describes how likely an event is, from impossible to certain, and can be written as a fraction of the possible outcomes.
How to teach it
Order events from impossible to certain in everyday language, then quantify simple chances as fractions of the equally-likely outcomes.
Worked example
Common mistake
Assuming a rare-but-possible event is impossible, and thinking past results change the next independent outcome.
What's inside
- A bag has 8 counters. 5 are blue. Picking a blue counter is (impossible, unlikely, even chance, likely, certain):
- A bag has 4 counters. 3 are yellow. Picking a yellow counter is (impossible, unlikely, even chance, likely, certain):
- A bag has 6 counters. 0 are green. Picking a green counter is (impossible, unlikely, even chance, likely, certain):
- A bag has 4 counters. 1 is green. Picking a green counter is (impossible, unlikely, even chance, likely, certain):
- A bag has 5 counters. 5 are purple. Picking a purple counter is (impossible, unlikely, even chance, likely, certain):
- A bag has 7 counters. 3 are orange. Picking an orange counter is (impossible, unlikely, even chance, likely, certain):
Sample questions. Each printable set below has fresh numbers; its printable answer key is available with Pro.
Year 4 Probability worksheet sets
All probability worksheets →Sets A-F are the same worksheet with different questions - print any (or all) for fresh practice.
Frequently asked questions
Are these Year 4 probability worksheets free?
Yes. Every worksheet on ChalkBee is free to view and print or save as a PDF, with no login required, and the answer key is free too. Pro removes the watermark and adds differentiated sets, worksheet packs and unlimited custom generation.
Do the worksheets have answer keys?
Yes, free, on every sheet. The answers are computed in code from the exact questions on the page, and the key prints on a page of its own so the student sheet stays clean.
How was the Year 4 level chosen?
The collection uses Year 4 terminology and an age-equivalent worksheet-library level. Key Stage 2 is shown as year-group context, not as a claim that every sheet maps to a specific statutory curriculum objective. There are 6 printable sets on this page.
How do I print or download them?
Open any set, then use your browser's print option to print it or to save it as a PDF. The pages are laid out to print cleanly on standard letter or A4 paper.