00:01
Okay, here i want to change 107 base 10 to base 2.
00:07
So come right down here.
00:10
Units, then 2s, 2 squared, 2 cubed, and so on, 1632, 64's, 1 -28's too large, so stop there.
00:23
Here we'll write 107, and i need 164.
00:31
So put 64 there, subtract, and we get.
00:35
43, so i need 132, so pract and i get 11, so no 16s, i need 1 8, 3 left over, so no 4s, a 2 and a 1.
00:53
And that's the answer.
01:04
Okay, now i want to do the following in base 16.
01:14
So let's write down first on the side, the values of a, b, c, d, e and f.
01:32
A will be of course 10.
01:35
B is 11.
01:37
C is 12, 13, 14 and 15.
01:44
So d minus e would be 13 minus 14.
01:49
Can't do that.
01:50
Therefore i have to borrow from the next column.
01:55
I borrow 16.
01:57
So what i'm doing here is and borrowing 16.
02:01
The d is 30.
02:02
So 16 plus 13, that will be 29.
02:10
E is 14, so 29 minus 14...