Maths shortcuts and tables for bank exams
Free revision sheets for the speed-maths topics in SBI, IBPS and RRB exams, and the tables you should know by heart.
Simplification Tricks for Bank ExamsSimplification is pure calculation speed. The goal is to avoid long multiplication — use the order of operations, percentage–fraction swaps and algebraic identities.Approximation Tricks for Bank ExamsIn approximation the options are far apart, so you never need exact values. Round every term to a friendly number and calculate in your head.Number Series Tricks for Bank ExamsEvery series follows one rule. Test the common rules in this order and you will crack most series within 20 seconds.Wrong Number Series Tricks for Bank ExamsA wrong-number series is a normal series with one term changed. Find the rule from the terms that agree with each other, then recompute every term.Quadratic Equations Tricks for Bank ExamsYou don’t need both roots exactly — you need to know where x’s roots sit compared with y’s. Signs alone often decide it.Squares 1 to 30 Table for Bank ExamsSquares up to 30 turn up in simplification, approximation, number series, quadratics and data interpretation. Knowing them by heart saves seconds on every one of those questions.Cubes 1 to 20 Table for Bank ExamsCubes up to 20 are used in number series, simplification and approximation. Learn the table once and the last-digit trick below does the rest.Fraction to Percentage Table (1/2 to 1/20)Percentage, profit and loss, data interpretation and simplification all go faster when you see 12.5% and think 1/8. The table gives every unit fraction up to 1/20.