Vedic mathematics is a system of mathematics consisting of 16 sutras or aphorisms obtained from ancient Hindu scriptures called the Vedas. It was presented in the early 20th century by Bharati Krishna Tirthaji Maharaja, an Indian scholar. The sutras provide concise formulae for solving problems through unique techniques like vertically-and-crosswise calculations without needing multiplication tables beyond 5x5. Some examples include techniques for squaring numbers and multiplying multi-digit numbers mentally through a carry-over method. Vedic mathematics was applied in areas like astronomy, astrology and constructing calendars.