Sunday, 8 April 2012

Study Material for PSC exams Government Jobs: How to do squaring a number faster than your usual methods.

Square of 123456


(1)square 6 = 36
(ii) multiply and double 5,6= 2(5*6)
(iii) multiply 4*6,double then square 5 and add = 2(4*6)+ sqaure of 5
(iv) multiply 3 and 6, double AND multiply 4 and 5, double=2(3*6)+ 2(4*5)
(v) multiply 2,6 double,,, then 3,5 , double,,,,,square 4 } add all
(vi) multiply 1,6 double,,,,, multiply 2,5 double....., multiply 3,4 double..add all
(vii)multiply 5,1 double,,,,,multiply 2,4 double,,,,,,square 3... add all

(viii) multiply 4,1 double,,,, multiply 2,3 double,,,,,,add all
(ix) multiply 3,1 double, ,,, square 2 add all
(x) multiply 2,1 double
(xi)square 1

NOW
1.36 ii.60 iii.73.iv. 76 v. 70 vi. 56 vii. 35 viii. 20 ix. 10 x. 4 xi.1

Start writing 6 of 36 from unit place, and keeping aside 3.then add to 60, 63, keeping aside 6 ..............
Answer is


15241383936

To learn many more techniques in speed maths

We recommend

The Power of Vedic Maths






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