Squares and Square roots

Which digits will a square number end in?

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Explanation

Well done !

Explanation:

units place digit of the number	units place digits of its square
0	0
1	1
2	4
3	9
4	6
5	5
6	6
7	9
8	4
9	1

Hence, the square of any number would have 0, 1, 4, 5, 6, 9 in its unit's place.
Option c is the correct choice.

Explanation

Wrong answer !

1, 4, 9, 6, 5, 0

Explanation :

units place digit of the number	units place digits of its square
0	0
1	1
2	4
3	9
4	6
5	5
6	6
7	9
8	4
9	1

Hence, the square of any number would have 0, 1, 4, 5, 6, 9 in its unit's place.
Option c is the correct choice.