Vedic Math Formulas
The Sixteen Sutras of Vedic Math
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Vedic Math essentially rests on the 16 Sutras or mathematical formulas as referred to in the Vedas . Sri Sathya Sai Veda Pratishtan has compiled these 16 Sutras and 13 sub-Sutras :

Ekadhikina Purvena (Corollary: Anurupyena)Meaning: By one more than the previous one Nikhilam Navatashcaramam Dashatah (Corollary: Sisyate Sesasamjnah)Meaning: All from 9 and the last from 10 Urdhva-Tiryagbyham (Corollary: Adyamadyenantyamantyena)Meaning: Vertically and crosswise
Paraavartya Yojayet (Corollary: Kevalaih Saptakam Gunyat)Meaning: Transpose and adjust Shunyam Saamyasamuccaye (Corollary: Vestanam)Meaning: When the sum is the same that sum is zero (Anurupye) Shunyamanyat (Corollary: Yavadunam Tavadunam)Meaning: If one is in ratio, the other is zero Sankalana-vyavakalanabhyam (Corollary: Yavadunam Tavadunikritya Varga Yojayet)Meaning: By addition and by subtraction Puranapuranabyham (Corollary: Antyayordashake'pi)Meaning: By the completion or non-completion Chalana-Kalanabyham (Corollary: Antyayoreva)Meaning: Differences and Similarities Yaavadunam (Corollary: Samuccayagunitah)Meaning: Whatever the extent of its deficiency Vyashtisamanstih (Corollary: Lopanasthapanabhyam)Meaning: Part and Whole Shesanyankena Charamena (Corollary: Vilokanam)Meaning: The remainders by the last digit Sopaantyadvayamantyam (Corollary: Gunitasamuccayah Samuccayagunitah)Meaning: The ultimate and twice the penultimate

Ekanyunena Purvena (Corollary: Dhvajanka)Meaning: By one less than the previous one Gunitasamuchyah (Corollary: Dwandwa Yoga)Meaning: The product of the sum is equal to the sum of the product Gunakasamuchyah (Corollary: Adyam Antyam Madhyam)Meaning: The factors of the sum is equal to the sum of the factors