Interesting Squares
This is another method that allows you to calculate squares of numbers that end in 5 in one line but this method only works for the squares of numbers that end in 5 like 25 35, 45, 65, 115, and 125.
Say you have to calculate a square of 35
then LHS is computed by multiplying 3 with its next consecutive digit which is 4 and
RHS is always a square of 5
So the result will be 1225
In the same way, the square of 45 will be 2025
And for 65 it will be 4225
For more understanding, you can see the image given above.
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