You can also evaluate expressions, factor polynomials, combine/multiply/divide expressions.
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There is also a discussion forum to support Y12 and Y13 students preparing for STEP and other advanced mathematics examinations.
You can ask for help and hints if you’re stuck, share what you have tried so far, offer advice to others and get expert guidance from Cambridge University students and staff.
These resources are designed to help potential university applicants develop their advanced problem-solving skills and prepare for sitting examinations such as STEP.
The material has been carefully selected to provide an accessible and supportive introduction to advanced problem-solving, and to help you build your confidence, fluency and speed.
This is why coins are used to make decisions, like who goes first in a football game–both teams have a 50% chance of going first and that is fair.
A probability tells you how likely something is to occur.
This doesn't mean that an event is guaranteed to happen, just if it is more or less likely to occur.
As we know from the coin model, we have a 50% chance of getting a heads on every toss.