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Why these tricks?

These are the highest-yield techniques for exams like SAT, GMAT, and Banking. Mastering just these 10 will make you faster than 99% of students.

#1

1. Square Numbers Ending in 5 (Instantly!)

The most famous trick. To square 85, just multiply 8 by the next number (9) to get 72, and append 25. Answer: 7225.

Master Squaring Method
#2

2. Multiply Any Number by 99, 999, 9999

Subtract 1 primarily, then subtract each digit from 9 to get the second half. Magic!

Learn All From 9
#3

3. Vertically and Crosswise (The Universal Trick)

Multiply ANY two numbers (2-digit, 3-digit, etc.) in a single line. The ultimate speed method.

Learn Vertical & Crosswise
#4

4. Find Square Roots by Observation

Look at the last digit of a perfect square to instantly guess the root. A must for competitive exams.

Square Roots Trick
#5

5. Algebra: When the Sum is the Same

Zero calculation required. If the numerators or denominators follow a pattern, the answer is often zero.

Algebra Shortcut
#6

6. Check Your Answers (Digit Sums)

Never lose marks to silly mistakes again. Verify any calculation in 5 seconds using Casting Out Nines.

Learn Verification
#7

7. Magic Fractions (Butterfly Method)

Add or subtract fractions without worrying about finding the Common Denominator first.

Fraction Trick
#8

8. Solve Simultaneous Equations

If 45x + 23y = 113 and 23x + 45y = 91, don't use substitution. Add them, then subtract them.

Simultaneous Equations
#9

9. Calculate Percentages (Split Method)

Find 15% by solving for 10% and adding half of it. No formulas needed.

Percentage Tricks
#10

10. Vinculum Numbers (Bar Numbers)

Hate subtracting large digits like 8 and 9? Convert them into small negative digits to make math easy.

Learn Vinculum

Pro Tip

Don't try to learn all 10 at once. Pick ONE trick per day. Consistency beats intensity.

📥 Download the Free Cheat Sheet (PDF) to keep on your desk.

Frequently Asked Questions

Which trick should I learn first?
Start with 'Vertically and Crosswise' (Multiplication) as it is the most universal. Then learn 'Squaring numbers ending in 5' for a quick confidence boost.
Are these allowed in exams?
Yes! Exams test your correct answer, not the method (unless specified). These methods are simply faster ways to get the same result.
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