Easy Squaring Shortcut 2

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Easy Squaring Shortcut 2

 Finding Square of a number which is Greater than 100
1. Assume, we have to find the square of N. First find the difference with 100
 (lets say the difference is D)
2. Find the square of D. It will give the last 2 digits of square.
3.Add the number (N) and Difference (D) ie find  (N+D). It will give you the first two digit of square

Example:  Find square of 103?
The surplus is 3. Increase 103 by 3, gives 106. This gives the left-hand part. The square of the surplus is
3 × 3 = 09. And this is the right-hand part of the answer. The base has two zeros and so the right-hand part is 09 and not just 9. So, the answer is 10609

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