Question

Squares do not have 2, 3, 7 or 8 in the units place.



I am in 7th standard please help me describing it with a example​

Answer 1

Step-by-step explanation:

if we will see the square of 1 will get one only and if you see that the no. which has 1 in its place always will have 1 in its unit place after squaring it also ..... Let's take an example if you square 21 then ans will be 441 which has 1 in its unit place . The same thing will apply in all the nos. Like in 2 it will always have 4 in its unit place and further on.... That's why squares don't have 2,3,7, 8 in units place because there are not square of any no.