Chess Board

Discrete Mathematics Level 2

In permutations and combinations , one of the problems that appear frequently is asking for the total number of squares on 8 x 8 chessboards. Can you tell what the answer is?

As an extension, can you find a formula to count the number of squares in N x M rectangle ?

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100 Day Summer Challenge

Chess Board

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.