What is a number pyramid?

A number pyramid is a mathematical pattern in which a pyramid is formed using numbers. The numbers are usually arranged in a triangular shape, with each row or level consisting of one more number than the previous one. The topmost number of the pyramid is called the vertex or apex.

The numbers in the pyramid are obtained by adding or multiplying the numbers in the previous row based on a particular pattern. For example, in an addition pyramid, each number is obtained by adding the two numbers directly above it, while in a multiplication pyramid, each number is obtained by multiplying the two numbers directly above it.

Number pyramids are commonly used in mathematics education to help students learn and understand basic mathematical concepts, such as addition, multiplication, and number patterns. They are also used in puzzle games and brain teasers to challenge players to find the missing numbers in the pyramid.

Overall, a number pyramid is an interesting and engaging way to visualize and explore mathematical concepts, and is a useful tool for both teachers and students.