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Summing Consecutive Numbers
Shifting Times Tables
Charlie's Delightful Machine
Go Forth and Generalise
Patterns in Number Sequences
Patterns in Number Sequences
Mathematicians are often interested in exploring the structure of number sequences. In these problems, we invite you to explore and describe sequences, and explain the patterns you notice.
Summing Consecutive Numbers Age 11 to 14Challenge Level 
Age 11 to 14
Challenge Level
15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?
Shifting Times Tables Age 11 to 14Challenge Level
Age 11 to 14
Challenge Level
Can you find a way to identify times tables after they have been shifted up or down?
Charlie's Delightful Machine Age 11 to 16Challenge Level
Age 11 to 16
Challenge Level
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Go Forth and Generalise Age 11 to 14
Age 11 to 14
Spotting patterns can be an important first step - explaining why it is appropriate to generalise is the next step, and often the most interesting and important.
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