what is the least number to be subtracted from 696 to make it a perfect square ?
"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 = 20 . answer : c"
subtract(multiply(const_100, add(const_10, multiply(const_3, const_2))), 696)