Ans: The basic and most simplistic methods of solving numerical problems involve addition, subtraction, multiplication, and division. Both multiplication and division are used in our daily lives in a variety of scenarios. They also help us solve complex numerical problems involving algebra and calculus. More than addition and subtraction, multiplication and division are easier to work with and obtain an accurate result. The concepts can be taught in a variety of ways using illustrations, drawings, simulations of certain scenarios, and the usual pen to paper method. One uses a variety of numbers like whole numbers, integers, fractions, and so on to represent various events and results. Therefore, multiplication and division aid to assemble and breakdown complex results in simplistic ones.