What are the first three digits in the square of 135?
182
Since the number ends in 5, we can use the shortcut to get the square of 135.
The numbers in 135 before 5 is 13.
Multiply the number 1 greater than 13 to 13.
So, 13 x 14 = 182
Thus 182 will be the first 3 digits in the square of 135.