Look on the back of any modern book and you will find an ISBN code. Take this code and calculate this sum in the way shown. Can you see what the answers always have in common?
A game that tests your understanding of remainders.
Weekly Problem 29 - 2011
From only the page numbers on one sheet of newspaper, can you work out how many sheets there are altogether?
Pupils from Town Close House in Norwich sent
in these pictures of the work done by many of the pupils working
together. Well done, some lively ideas.
Just to finish and say that there were a lot
of good solutions. I particularly liked the solution from Amy from
Archbishop Beck's chool. She suggested that the odds and evens were
separated so in a $3x3$ square the houses went $1 ,3, 5, 7, 9, 11,
12, 10, 8, 6, 4, 2$ clockwise around the tiny square!
James also solved the problem in very creative
way. He says:
You're right, James, we didn't say that the
house numbers were in numerical order so I think your solution
would definitely work. Well done!