UPDATE `apptidudeques1` SET `createdTime`='1531791440' WHERE `id`='53'UPDATE command denied to user 'bankersalgo'@'' for table 'apptidudeques1' Learn Quick problem solving skills | Banker's Algo
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Success is not final, failure is not fatal: it is the courage to continue that counts

-by Winston Churchill

Series Funda

Find out the Wrong One

527, 318, 237, 188, 163, 154, 150

Hi Guest User

Banker's Funda
Squring upto 99 is very Easy.. Save It

Very easy method….Just mug-up  the formlae and squares are in your fingre tips

This require the basic squares till 9 to be known and a temporary memory box in your mind where you can put the carry overs of each calculation for a short time to be used.

The simple and baisc formulae used is

  (ab)² = (a²+carry_2)   (a*b*2+carry_1)  ( b² )

For example: 78²

8²=64 (carry_1=6);  7*8*2=112+carry_1;112+6=118 (carry_2=11);

7²=49; 49+carry_2; 49+11=60

Hence 6084

Lets check another square

For example: 84²

4²=16 (carry_1=1);  4*8*2=64+carry_1;64+1=65 (carry_2=6);

8²=64; 64+carry_2; 64+6=70

Hence 7056

Isn't is easy and simple....

Exercise : Use this trick to find the square of 48, 96. 99, 77, 4

Something more for you.. Check if you can use this ttrick for three digit Numbers

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