Can we use the pieces of paper from Truth Tiles to make a 'complex equation' that works out?
What the boys mean by this is that the answer to the first equation is operated on by the next part and that answer is operated on by the next and so on until the tiles are all used. It is like pressing the keys on a calculator with the rules that:
One answer that satisfied them was:
- You can only use +, - and x once each.
- Equals is pressed after each operation.
- Each digit must show once only on the screen.
However it didn't satisfy them for long because they hadn't used the 9 tile. Tackling that challenge led to:
which left out 4.
So, the challenge, the Phillip-Steven-Harley Challenge, is:
Can you make a complex equation that uses all 9 digits?
- equations: creating/solving
- mathematical conversation
- operations - whole number
- order of operations
- problem solving
- recording - calculator