Eduqo
Quantitative Aptitude›Ch 5: Data & Speed Maths›Speed Maths Mastery
Vedic tricks for SSC, Railways, and State Exams
Mastery in Speed Maths reduces calculation time by 60% during exams. Focus on Vedic patterns and base methods for 100% accuracy.
Memory Hooks for Fast Recalls
| Method | Example | Logic |
|---|---|---|
| Mul by 11 | 45 x 11 | 4 (4+5) 5 = 495 |
| Square 50s | 52^2 | (25+2) | 04 = 2704 |
| Square 100s | 104^2 | (104+4) | 16 = 10816 |
11 Sandwich
(Add and insert)
Add and insert
23 x 11 = 2(5)3
Base 25
(For 50-60 series)
For 50-60 series
54^2 = (25+4) | 16
Vert-Cross
(Vedic Multiplication)
Vedic Multiplication
Cross-multiply digits
10% Shift
(Decimal movement)
Decimal movement
10% of 840 is 84
Using 50 as base for squaringUsing 25 as base for 50s
While squaring near 50, always add/subtract from 25, not 50.
Forgetting zero in 51 square51 squared is 2601
Always keep two digits at the end. (25+1) | 01, not 261.
1% calculation by 1 decimal shift1% requires 2 decimal shifts
10% is one shift, 1% is two shifts to the left.
Q1.Calculate the value of 56 squared.
Q2.What is 11 multiplied by 72?