Permutations and combinations are two important concepts in mathematics used for counting and solving problems involving arrangements or selections. The key difference between them is whether the order of items matters. Permutation and combination are the methods employed in counting how many outcomes are possible in various situations. Permutations are understood as arrangements and combinations are understood as selections. Permutations and combinations are mathematical methods used to count how many ways you can arrange or select items from a group. A permutation counts each possible order as different (arrangement matters), while a combination counts only the different selections, ignoring order. permutations and combinations and how to differentiate between them, Definition of the fundamental counting principle and permutations, solving for permutation, solving for permutations with repetition, definition of combinations, solving for the number of different combination, solving for the number of different combinations of multiple events, Algebra II students, with video lessons, examples and step-by-step solutions.