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Karim Nagieb
603 Pointsi don't understand the binary well , how 00000011 =2 or 3 ?
plz help me if 2xX=11 then X=5.5 !! plz can you explain the binary well for me ?
2 Answers
Jennifer Nordell
Treehouse TeacherHi Karim! Binary can be tough for people starting out. I've drawn up a little table that might help explain it better. When converting from binary to decimal we always start on the right side and read to the left. 
| 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 |
|______|_____|_____|_____|_____|_____|_____|_____|
| 2^7 | 2^6 | 2^5 | 2^4 | 2^3 | 2^2 | 2^1 | 2^0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
As you can see, our ones occur in the 2^0 column and the 2^1 column. So 1 + 2 = 3. Hope this helps, but let me know if it needs more clarification!
Karim Nagieb
603 Pointsi understood , thank you :))
Karim Nagieb
603 PointsKarim Nagieb
603 Pointsthen 00000111 = ? & i will be understood:))
Jennifer Nordell
Treehouse TeacherJennifer Nordell
Treehouse TeacherIf you're asking what 00000111 is equal to, add up the columns. Take a look at the table above. The ones would line up with the 1, the 2, and the 4. Add these together and you get 7.
If we had 00100111 then they would line up with 1, 2, 4, and 32. That would bring the total to 39.
Hope this clarifies things!