Question

What is 10001000₂ - 0001101100₂

Answer 1

$$\begin{matrix} & \ \ \ 10001000_2\\ - \\ & 0001101100_2\\ \hline & \ \ \ \ \ \ 0011100_2\\ \end{matrix}$$

Or

$$10001000_2=8+128=136$$

$$0001101100_2=4+8+32+64=108$$

$$136-108=28$$

$$28=11100_2$$