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I'm trying to convert hex 8B to decimal. Though I keep getting wrong decimal? I used this https://www.youtube.com/watch?v=t_kA5KQxByc as a guide.

I see that the soln is 139.

8B

8421 | 8421

1000 | 1011

128 64 32 16 8 4 2 1

1 0 0 0 1 0 1 1

Adding, I get 141??

hellothere
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  • $8B = 8 * 16^1 + B * 16^0$ – user1949350 Jul 19 '18 at 01:02
  • $128+8+\color{red}{2}+1=139$... so I'm not sure where you're getting $141$ from. $141=128+8+\color{red}{4}+1$, so maybe you misread a $2$ as a $4$. – JMoravitz Jul 19 '18 at 01:03
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    Perhaps your error comes from your inability to read your chart you made for yourself... properly aligning things might help: $\begin{array}{c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c}128&64&32&16&8&4&2&1\1&0&0&0&1&0&1&1\end{array}$ – JMoravitz Jul 19 '18 at 01:06

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