Question

If the square ends with 6, then the number has ___ or ___ in the units place.

• A. $2$ or $8$
• B. $4$ or $6$
• C. $1$ or$9$
• D. $3$ or $7$

Answer 1

The correct option is B $4$ or $6$

For example, $24\times 24=57\underset{–}{6}$
$36\times 36=129\underset{–}{6}$ ( square ends with 6)
Therefore, B is the correct answer.