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# Oh for the Mathematics of Yesteryear

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### Base Puzzle

### Happy Octopus

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Age 11 to 14

Challenge Level

- Problem
- Getting Started
- Student Solutions

For part one:

How much bread is there altogether?

For part two:

I worked in pennies - how many pennies (d) in the pound (Ã‚ £)

This investigation is about happy numbers in the World of the Octopus where all numbers are written in base 8 .Octi the octopus counts.

This investigation is about happy numbers in the World of the Octopus where all numbers are written in base 8 ... Find all the fixed points and cycles for the happy number sequences in base 8.