Look at the following sequence of sums:
11 to 12 year olds
Which are the results the results? Do you see any pattern?
Nicomachus of Gerasa, Aristotle’s nephew, discovered an interesting pattern that we want you to rediscover.
Express each of the results using only two numbers (one of these you must use in all results of the sequences) and you can only use one operation (the same for all sequences).