Welcome to the second of our difficult Eleven Plus maths quizzes on Number Sequences. By now you should be a dab hand at finding the missing values in a series – if not, this quiz will give you plenty of opportunity to practice.
There are two ways to tackle these kinds of problems. The first is to attempt to find the rule for the nth term. The second is to try to work out how the series of numbers is progressing. For example, look at this sequence:
4, 5, 6, 7 …
Obviously, these numbers are increasing by one each time. The rule for the nth term here is n + 1. Simple isn’t it?