The square of $65$ is:

Question

The square of $65$ is:

Option A

4025

Option B

4125

Option C — Correct answer

4225

Correct choice.

Option D

4325

Explanation

Since the number ends in $5$, compute $6\times7=42$ and append $25$. So $65^2=4225$.

Chapter Mock 1: Number System, Simplification and Approximation