1. (7CA)₁₆ = (      ?      )_{Excess 3}

Solution:
(7CA)₁₆ = (_______)_XS3

1. Convert hexadecimal to decimal
(7CA)₁₆ = (_______)₁₀

`7CA`

` = 7 × 16^2 + C × 16^1 + A × 16^0`

`= 7 × 256 + 12 × 16 + 10 × 1`

`= 1994`


`:.` (7CA)₁₆ = (1994)₁₀


2. Convert decimal to XS3
(1994)₁₀ = (_______)_XS3

1 +3 =4	9 +3 =12	9 +3 =12	4 +3 =7
0100	1100	1100	0111

`:.` (1994)₁₀ = (0100110011000111)_XS3


`:.` (7CA)₁₆ = (0100110011000111)_XS3

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2. (4F8)₁₆ = (      ?      )_{Excess 3}

Solution:
(4F8)₁₆ = (_______)_XS3

1. Convert hexadecimal to decimal
(4F8)₁₆ = (_______)₁₀

`4F8`

` = 4 × 16^2 + F × 16^1 + 8 × 16^0`

`= 4 × 256 + 15 × 16 + 8 × 1`

`= 1272`


`:.` (4F8)₁₆ = (1272)₁₀


2. Convert decimal to XS3
(1272)₁₀ = (_______)_XS3

1 +3 =4	2 +3 =5	7 +3 =10	2 +3 =5
0100	0101	1010	0101

`:.` (1272)₁₀ = (0100010110100101)_XS3


`:.` (4F8)₁₆ = (0100010110100101)_XS3

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