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 math tricks for fast multiplication

Nikhilam, Urdhva-Tiryagbhyam, and other Vedic shortcuts for fast multiplication.

How to multiply any 2-digit number by 11 instantly

A quick mental trick for multiplying any two-digit number by 11 instantly.

Multiplying numbers close to 100 (base method)

A dedicated walkthrough of the base-100 method for numbers above, below, and around 100.

Multiplying 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.

Fast squaring of numbers ending in 5

A near-instant two-step trick for squaring any number ending in 5, like 35² or 85².

How to calculate percentages quickly without a calculator

Mental shortcuts for percentages using 10%/1% building blocks, common fractions, and quick increase/decrease math.

Mental division tricks for 2 and 3-digit divisors

Shortcuts for dividing by 2- and 3-digit numbers using factoring, rounding, and reciprocal tricks.

Finding square roots and cube roots quickly

Perfect square/cube recognition, digit-based narrowing, and approximation shortcuts for non-perfect numbers.

Digit sum & divisibility rules (2 through 13) explained

Digit-sum and pattern-based shortcuts for checking divisibility by 2 through 13, without dividing.

Quick tricks for calculating simple and compound interest

Percentage-building shortcuts for simple interest, compound interest, and the 2-year CI-SI difference trick.

Mental math tricks for discounts and profit/loss

Fast shortcuts for discount calculations, successive discounts, and profit/loss problems using percentage building blocks.

Age, ratio, and average shortcuts for competitive exams

Fast setups for age problems, ratio-and-proportion questions, and average calculations using deviations.

Time, speed, and distance shortcuts for competitive exams

Fast setups for relative speed, average speed, boats and streams, and time-saved problems.

Simplification and approximation tricks for exam prelims

BODMAS shortcuts, fraction-decimal recognition, and smart rounding for fast, accurate prelims scores.

Data interpretation shortcuts: approximation techniques that save time

Fast approximation methods for DI percentages, ratios, averages, differences, and division-heavy calculations.

Best quantitative aptitude shortcuts for SBI PO prelims

Practical shortcuts for percentages, ratios, averages, approximation, multiplication, division, and faster calculations.

IBPS Clerk Numerical Ability: time-saving calculation tricks

Practical shortcuts for percentages, fractions, ratios, averages, approximation, multiplication, division, and faster calculations.

RRB 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.

How 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.

How 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.

Best 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 vs. conventional math: which is faster for exams?

Compare Vedic and conventional calculation methods, including speed, accuracy, flexibility, learning time, and exam use.

Abacus vs. mental math training: pros and cons

Compare abacus and mental-math training for speed, accuracy, flexibility, learning time, and competitive-exam preparation.

How 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.

5-minute daily mental math warm-up routine

A simple five-minute routine covering arithmetic, multiplication, division, percentages, squares, and timed mixed practice.

How to practice speed math using timed quizzes

Learn how to use timed quizzes to build calculation speed, track accuracy, and improve performance under pressure.

Common 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.

Mental math tricks every student should know before high school

Learn practical tricks for multiplication, percentages, division, squares, estimation, and everyday mental calculations.

Mental math for everyday life: shopping, budgeting, tipping

Practical mental math for discounts, budgets, bill splitting, tips, price comparisons, and everyday spending decisions.