So remember how I said previously that binary is written in 8 bits, well if you didn’t then you should probably read up a bit more and then if you still cant remember that binary is written 8 bits strings then I suggest you give in to whomever gave you this link and bow to their ultimate superiority in all things mathematics.

Any who, so iIn this game you are given 8 bits strings of binary goodness, example being 10111001. I will tell you that particular string adds up to 185 but how do I get that. Its simple, each bit in the string represents a number. See the table below, that’s what we call a conversion chart.

Now to calculate how 10111001 is 185 we place 1 number in each cell of the table, like so;

128 |
64 |
32 |
16 |
8 |
4 |
2 |
1 |

1 |
0 |
1 |
1 |
1 |
0 |
0 |
1 |

Now for every cell that has a 1 in it write the corresponding number down. Eg 128, 32, 16, 8, 1. Now you simply add them together so 128 + 32 + 16 + 8 + 1 = 185.

So if you got this far congrats you can convert binary to denary! woo! you got half way! Well done you!