Mental Maths Articles & Guides
Practical shortcuts and methods — not just theory.
How to calculate squares and cubes mentally
A step-by-step method for squaring two-digit numbers in your head, with worked examples.
Vedic MultiplicationVedic math tricks for fast multiplication
Nikhilam, Urdhva-Tiryagbhyam, and other Vedic shortcuts for fast multiplication.
Multiply by 11How to multiply any 2-digit number by 11 instantly
A quick mental trick for multiplying any two-digit number by 11 instantly.
Base-100 MultiplicationMultiplying numbers close to 100 (base method)
A dedicated walkthrough of the base-100 method for numbers above, below, and around 100.
Same-Tens-Digit MultiplicationMultiplying two numbers with the same tens digit (e.g. 43×47)
A fast shortcut for multiplying two numbers that share a tens digit, using one small multiplication and an addition.
Squaring Numbers Ending in 5Fast squaring of numbers ending in 5
A near-instant two-step trick for squaring any number ending in 5, like 35² or 85².
Fast PercentagesHow to calculate percentages quickly without a calculator
Mental shortcuts for percentages using 10%/1% building blocks, common fractions, and quick increase/decrease math.
Mental DivisionMental division tricks for 2 and 3-digit divisors
Shortcuts for dividing by 2- and 3-digit numbers using factoring, rounding, and reciprocal tricks.
Square & Cube RootsFinding square roots and cube roots quickly
Perfect square/cube recognition, digit-based narrowing, and approximation shortcuts for non-perfect numbers.
Divisibility RulesDigit sum & divisibility rules (2 through 13) explained
Digit-sum and pattern-based shortcuts for checking divisibility by 2 through 13, without dividing.
Simple & Compound InterestQuick tricks for calculating simple and compound interest
Percentage-building shortcuts for simple interest, compound interest, and the 2-year CI-SI difference trick.
Discounts & Profit/LossMental math tricks for discounts and profit/loss
Fast shortcuts for discount calculations, successive discounts, and profit/loss problems using percentage building blocks.
Age, Ratio & AverageAge, ratio, and average shortcuts for competitive exams
Fast setups for age problems, ratio-and-proportion questions, and average calculations using deviations.
Time, Speed & DistanceTime, speed, and distance shortcuts for competitive exams
Fast setups for relative speed, average speed, boats and streams, and time-saved problems.
Simplification & ApproximationSimplification and approximation tricks for exam prelims
BODMAS shortcuts, fraction-decimal recognition, and smart rounding for fast, accurate prelims scores.
Data InterpretationData interpretation shortcuts: approximation techniques that save time
Fast approximation methods for DI percentages, ratios, averages, differences, and division-heavy calculations.
SBI PO Quantitative AptitudeBest quantitative aptitude shortcuts for SBI PO prelims
Practical shortcuts for percentages, ratios, averages, approximation, multiplication, division, and faster calculations.
IBPS Clerk Numerical AbilityIBPS Clerk Numerical Ability: time-saving calculation tricks
Practical shortcuts for percentages, fractions, ratios, averages, approximation, multiplication, division, and faster calculations.
RRB & SSC QuantRRB and SSC quant shortcuts: what's different from bank exams?
Understand the key differences in quant preparation and build the right shortcut toolkit for RRB, SSC, and bank exams.
Bank Exam PreparationHow to improve calculation speed for bank exams in 30 days
A practical 30-day plan covering percentages, fractions, multiplication, division, approximation, timed drills, and error tracking.
Bank Exam Time ManagementHow many seconds should you spend per question in bank exam quant?
Learn practical time targets for easy, normal, DI, and difficult quant questions without treating every question the same.
Mental Math ToolsBest mental math apps and websites compared
Compare popular mental math apps and websites for speed practice, structured learning, timed drills, and exam preparation.
Vedic Math & Exam SpeedVedic math vs. conventional math: which is faster for exams?
Compare Vedic and conventional calculation methods, including speed, accuracy, flexibility, learning time, and exam use.
Mental Math TrainingAbacus vs. mental math training: pros and cons
Compare abacus and mental-math training for speed, accuracy, flexibility, learning time, and competitive-exam preparation.
Mental Math PracticeHow to build a daily mental math practice habit that sticks
Build a sustainable daily routine with short sessions, habit triggers, timed practice, progress tracking, and easy fallback routines.
Mental Math Practice5-minute daily mental math warm-up routine
A simple five-minute routine covering arithmetic, multiplication, division, percentages, squares, and timed mixed practice.
Timed Quiz PracticeHow to practice speed math using timed quizzes
Learn how to use timed quizzes to build calculation speed, track accuracy, and improve performance under pressure.
Mental BlocksCommon mental blocks when doing math under time pressure — and how to fix them
Learn how to handle freezing, overthinking, careless mistakes, shortcut recall problems, and time pressure during mental math.
Student Math BasicsMental math tricks every student should know before high school
Learn practical tricks for multiplication, percentages, division, squares, estimation, and everyday mental calculations.
Everyday Mental MathMental math for everyday life: shopping, budgeting, tipping
Practical mental math for discounts, budgets, bill splitting, tips, price comparisons, and everyday spending decisions.