Sing the value of the digit at unit place state which of the following can be square of a number

Question

Seeing the value of the digit at unit’s place, state which of the following can be square of a number : 

(i) 3051 (ii) 2332 (iii) 5684 (iv) 6908 (v) 50699

Answer 1

We know that the ending digit (the digit at units place) of the square of a number is 0, 1, 4, 5, 6, or 9 So, the following numbers can be squares : 3051, 5684, and 50699 

i.e., (i), (iii), and (v)