The figure below shows an addition sum in unsigned binary. It contains errors, the working is wrong:

Figure 2.3

10110111
10011011	+
101101011	carries
110100100	result

1. What is the correct binary result? Answer
2. What is the correct sequence of carries? Answer
3. What would correct binary result be if this was the addition of two numbers in eight bit two's complement? Answer
4. What does the first number represent in eight bit two's complement (give your answer in standard decimal)? Answer
5. What does the second number represent in eight bit two's complement (give your answer in standard decimal)? Answer
6. What does the two's complement number you gave in 3 represent in decimal? Answer