(a) Excess-3 code is a 4-bit binary code for the 10 decimal digits and is found useful in digital computer arithmetic. Each combination is found by adding 3 to the decimal number being coded and translating the result into direct binary form. Set up a table for the excess-3 code for the 10 decimal digits.
(b) Set up a table for a 4-to-10 line excess-3 decoding.