Using cubes of each rod in turn
they built up the square from the centre.
|Claudia was busy making cubes - so she joined in!|
At this point Mr Gregg thought it would be wise to stop - it would be difficult to find 49 sevens. But the girls were determined to press on - and they did it:
"Probably best to stop now," Mr Gregg said. "You'll never find 64 eights."
But - and Alicia joined the team now - the girls were not going to stop.
|The nines complete|
There's a strange pattern of the odd and even numbers - can you see it?
And the lengths of the squares follows a neat pattern too!
On Friday we'll have another look at the numbers involved.