Copyright © University of Cambridge. All rights reserved.
'Routes 1 and 5' printed from http://nrich.maths.org/
If you look at this grid you will see that when you move in
different directions you add or subtract certain numbers. For
example, moving one place to the right adds on one, moving up adds
Find your way through the grid starting at 2 and following these
What number do you end
Find another way using these starting and end numbers, and record
it in a similar way to the one above.
How can you use what you have done to find the shortest path
between these two numbers?