✨✨ Definition and Concept:The Nikhilam Method, derived from the Sanskrit phrase "Nikhilam Navatascaramam Dasatah," translates to "All from 9 and the last from 10." This method simplifies multiplication and division, particularly when one of the numbers involved is close to a power of 10 (such as 10, 100, 1000, etc.). It leverages the concept of complements to reduce the complexity of calculations.✨✨ Mathematical Foundation:The method is based on the idea of using the complements of numbers with