Welcome to the most comprehensive collection of speed math tricks for competitive exams PDF aspirants will find online. Compiled by the Shortcut Maths faculty with 15+ years of teaching experience in Kolkata, this pillar page links every deep-dive shortcut article on our site. Use it as your central hub for SSC CGL, IBPS PO, SBI PO, Railway NTPC, CAT and MAT preparation.
Table of Contents
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Request Free PDF Call 98044903281. Multiply by 11, 5, 25 and 50
×11: For 43 × 11, write 4 | (4+3) | 3 = 473.
×5: 84 × 5 = (84 ÷ 2) × 10 = 420.
×25: 72 × 25 = (72 ÷ 4) × 100 = 1800.
×50: 146 × 50 = (146 ÷ 2) × 100 = 7300.
2. Square Numbers Ending in 5
For any number ending in 5, multiply the left digit by (itself + 1) and append 25.
Example: 75² = 7 × 8 = 56 → 5625.
3. Fraction-Percentage Conversions
Memorising key fractions saves massive time in DI and Arithmetic:
| Fraction | % | Fraction | % | Fraction | % |
|---|---|---|---|---|---|
| 1/2 | 50% | 1/3 | 33.33% | 2/3 | 66.66% |
| 1/4 | 25% | 3/4 | 75% | 1/5 | 20% |
| 1/6 | 16.66% | 1/8 | 12.5% | 1/9 | 11.11% |
4. Division by 5, 25, 125
÷5: multiply by 2, shift decimal left once.
÷25: multiply by 4, shift decimal left twice.
÷125: multiply by 8, shift decimal left thrice.
Example: 648 ÷ 125 = 648 × 8 = 5184 → shift 3 places = 5.184.
5. Digital Sum Verification
Reduce any number to a single digit and cross-check multiplication/division answers instantly. Read the full method in our digital sum guide.
Deep-Dive Shortcut Articles
Each article below expands one high-value shortcut with diagrams, solved examples and FAQs:
| Topic | Target Keyword | Best For |
|---|---|---|
| Circular Seating Arrangement Tricks | circular seating arrangement tricks for bank exams pdf | Bank PO, IBPS PO Reasoning |
| Digital Sum Method | how to use digital sum method in simplification | SSC, Bank Simplification |
| Linear Seating Arrangement | linear seating arrangement tricks facing north and south | Bank, SSC Reasoning |
| Quadratic Equation Shortcuts | quadratic equation shortcut tricks for bank exams | Bank PO Prelims |
| Cube Root in 3 Seconds | how to find cube root of a large number in 3 seconds | SSC, Railway |
| Time & Work LCM Method | time and work lcm method shortcut formulas | Bank, SSC, Railway |
| Alligation Cross-Method | alligation method shortcut tricks with examples | Bank, SSC, CAT |
| Compound Interest Without Formula | compound interest shortcut tricks without formula | Bank, SSC |
| Successive Percentage | successive percentage formula shortcut tricks | Bank, SSC, CAT DI |
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Q1. Is the Speed Math PDF really free?
Yes. Call 9804490328 or visit our Jadavpur centre. We will share the PDF via WhatsApp or email at no cost.
Q2. Which exams are covered in the PDF?
SSC CGL/CHSL, IBPS PO/Clerk, SBI PO, Railway NTPC/Group D, CAT, MAT and WBCS.
Q3. How long does it take to master these tricks?
With 30 minutes daily practice, most students internalise the top 20 tricks within 2-3 weeks.
Last updated: June 27, 2026. For coaching in Kolkata, call +91-9804490328.