Percent and fractions: Probability

Probability calculates the chance of something happening in the future and is measured in per cent (%). It is regularly used to predict the weather. For example, 'I predict that there is a 50% chance of rain tomorrow'.

Quick tips for tutors

Probability includes:

  • Recognising the different ways of putting a number to chance events
  • Calculating probabilities of events
  • Ordering events by probability
  • Practising putting a number to chance events

Downloadable Factsheets

What is probability?
Probability words
How certain?
Fractions, decimals and percentages
The probability scale
What is probability?
Working out the probability: rolling a dice

Downloadable Worksheets

Probability statements
Ordering chances
Putting a number to chance
Investigate weather forecasts
Pack of cards
Probability scale
Investigate flipping a coin

More from Skillswise

Place value
Rounding and estimating