Complete guide to Approximate Values for competitive exams: square roots (√2 = 1.414, √3 = 1.732, √5 = 2.236, √6 = 2.449, √7 = 2.646, √8 = 2.828, √10 = 3.162), cube roots (∛2 = 1.260, ∛3 = 1.442, ∛4 = 1.587, ∛5 = 1.710, ∛6 = 1.817, ∛7 = 1.913, ∛8 = 2.000, ∛9 = 2.080, ∛10 = 2.154), important values of π (3.14, 22/7, 3.1416), value of e (2.718), reciprocal approximations (1/2 = 0.5, 1/3 = 0.333, 1/4 = 0.25, 1/5 = 0.2, 1/6 = 0.1667, 1/7 = 0.142857, 1/8 = 0.125, 1/9 = 0.1111, 1/10 = 0.1), percentage approximations (33.33% = 1/3, 66.67% = 2/3, 25% = 1/4, 75% = 3/4, 20% = 1/5, 40% = 2/5, 60% = 3/5, 80% = 4/5), value of √[(a² + b²)/2] (RMS approximation), BODMAS simplification approximations, and shortcut tricks for SSC, Banking, Railway, UPSC, and other government exams.