Number (addition and subtraction): Rabbit Island

Further Challenges

• How many different solutions are you able to find? How will you know if you have found all of the possible solutions?
• Look closely at this famous number sequence:

1 + 1 + 2 + 3 + 5 + 8 + 13 + 21

It was created by an Italian mathematician called Leonardo Fibonacci in the 12th century. He used the sequence to explain how the number of rabbits in a field (from which they could not escape or be eaten by predators) might grow from a single breeding pair after a month, a year and beyond.

What do you notice about the sequence?

What is the next number in the sequence?

How far can you extend the sequence?

Note: The Rabbit Problem by Emily Gravett is an excellent book to read alongside this particular challenge.