Or search by topic
Try looking for the lowest numbers on the grid.
Will visiting the largest number of squares give us the greatest total? Can we visit all the squares?
Six new homes are being built! They can be detached, semi-detached or terraced houses. How many different combinations of these can you find?
Start with four numbers at the corners of a square and put the total of two corners in the middle of that side. Keep going... Can you estimate what the size of the last four numbers will be?