Probability worksheets
Probability worksheets give students in Grade 3 to Grade 6 focused practice in chance, likelihood and simple probability. This page has 24 free printable sets, grouped by grade, and every set includes a computed answer key that is never wrong. Print them or save as a PDF, no login needed, or generate a fresh one.
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 balls. 2 are red. What is the probability of picking a red one? Write it as a fraction.
- A bag has 7 marbles. 4 are blue. What is the probability of picking a blue one? Write it as a fraction.
- A bag has 5 counters. 4 are yellow. What is the probability of picking a yellow one? Write it as a fraction.
- A bag has 9 cards. 8 are purple. What is the probability of picking a purple one? Write it as a fraction.
- A bag has 11 balls. 8 are purple. What is the probability of picking a purple one? Write it as a fraction.
- A bag has 11 cards. 10 are blue. What is the probability of picking a blue one? Write it as a fraction.
Sample questions. Each set (A, B, C…) has fresh numbers and a computed answer key.
Grade 3 Probability
All Grade 3 worksheets →Grade 4 Probability
All Grade 4 worksheets →Grade 5 Probability
All Grade 5 worksheets →Grade 6 Probability
All Grade 6 worksheets →Frequently asked questions
Are these probability worksheets free?
Yes. Every worksheet on ChalkBee is free to view, print and download as a PDF. There is no paywall and you do not need to log in or create an account.
Do the worksheets have answer keys?
Yes. Every set comes with a full answer key. For maths, the answers are computed in code from the exact numbers printed on the sheet, so the key is never wrong.
What grades do probability worksheets cover?
Probability worksheets on this page cover Grade 3 to Grade 6. There are 24 printable sets in total, grouped by grade so you can pick the right level.
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.