Here is an E**asy way to find Squares of numbers which contain 5 as their last digit**..

Consider the digits written before 5 as a single number and multiply it be its succcessor and then write it and put 25 as the last two digits of it...

**For example:**

to find square of **15**:: (1*2)=2 and then write 25 at the end ,ie. **2****25**

similarly to find square of **25**:: (2*3)=6 and then write 25 at the end i.e, **625**

for finding square of **105**:: (10*11)=110 and then write 25 at the end ,i.e, **11025**

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