Bluff - Tricks to square of two digit number, Methods to square two digit number

Tricks to square of two digit number

square of two digit number tricks

Rules 
1. Consider 'ab' a two digit number
2. To square individual digit and append it, i.e., (a*a)(b*b)
3. Multiply digits with 20, ie., 20*a*b
4. To add these results, ab*ab = (a*a)(b*b) + 20*a*b

Example : 
1. Take, 58
2. 5 * 5 = 25, 8 * 8 = 64, ie., 2564
3. 20 * 5 * 8 = 800
4. 2564 + 800 = 3364
therefore, 58*58 = 3364

Its simple tricks for squaring the 2 digit numbers.

The topic on Bluff - Tricks to square of two digit number is posted by - Math

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