how to represent -858 decimal number as a 16 bit binary number in its 2's compliment form?

Question

pls give me da detail steps

Answer 1

2)858
2)429, 0
2)214, 1
2)107, 0
. 2)58, 1
. 2)29, 0
. 2)14, 1
. . 2)7, 0
. . 2)3, 1
. . 2)1, 1
. . . . 0, 1
858 ==> 0000 0011 1010 1010
⌐858 ==> 1111 1100 0101 0101 (NOT858)
- 858 ==> 1111 1100 0101 0110 (NOT858 + 1)

Answer 2

It's easy to work out. write your 8 bits as lines along the page, then start with 1 as the first bit, the second bit is 2X1 = 2, the third bit is 2X2 = 4, the fourth bit is 2X4 = 8 and so on until the eighth bit which is 128 (2X64). Add all those numbers together and you get 255 or 11111111 in binary.