What is the least number to be subtracted from 696 to make it a perfect square? Choose the correct choice from the following answers
A) 1
B) 16
C) 20
D) 71
E) 60
The numbers less than 696 and are squares of certain numbers are 676, 625.   The least number that should be subtracted from 696 to make it perfect square = 696 - 676= 
<gadget id="calculator">696 - 676</gadget>
<output>20</output>
20.   ANSWER:20
<result>C</result>
What is the least number to be subtracted from 696 to make it a perfect square?