While finding the square root of 15725, a student grouped the numbers as 15,72,5. What is the mistake in it?

How will you remedy the mistake?While finding the square root of 15725, a student grouped the numbers as 15,72,5. What is the mistake in it?
one should grup 2 digits from the right and not from left





157,25


1,57,25





mathkp


While finding the square root of 15725, a student grouped the numbers as 15,72,5. What is the mistake in it?
If they got to the 5 and treated it like 5.0, then their answer will be easily correctable.





3 9 6 . 5


---------------


鈭?5.72.50.00


-9


--


69 6 72


6 21


-----


786 51 50


47 16


-------


7925 4 34 00


3 96 25





Is just the square root of 157250 instead of 15725.


157250=15725*10


鈭?57250=鈭?5725*鈭?0


鈭?5725=鈭?57250 / 鈭?0





So take the answer the student got (396.5) and divide it by 鈭?0 (3.16) to get the right answer.