Question

by observation only tell why these numbers are not perfect squares by giving reasons
1:- 1000
2:- 2067
3:- 12463
4:- 9758
5:- 45712
6:- 81000

Answer all questions in detail plz​

Answer 1

Answer:

1- any number ending with odd number of zeroes cannot be a perfect square

2- number having 2,3,7 or 8 as unit place cannot be a perfect square

3- same

4- same

5- same

6- odd number of zeroes (3)