waecmaths question:
Evaluate ${{({{111}_{two}})}^{2}}$ and leave your answer in base 2
Option A:
111001two
Option B:
110001two
Option C:
101001two
Option D:
10010two
waecmaths solution:
$\begin{align} & 111 \\ & \text{ }\times \underline{111} \\ & 111 \\ & \text{ }111 \\ & \text{ }\underline{\text{ +}111\text{ }} \\ & \underline{\text{ }{{110001}_{2}}\text{ }} \\\end{align}$
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