What is the meaning of an integer wall?

Integer walls are in the form of a pyramid with

generally four layers (but you can have more depending on how many

base numnbers you have). To set up and integer wall, you start with

your base numbers (starting numbers) ont he bottom/base layer. To

work out an integer wall you must start at the base layer, and add

the numbers next to each other, and put there sum in the pyramid

layer on top, then add the next row of pairs and place them above

another layer. You will eventually end up with only one number in

the top layer. This is your integer wall total.