Let's solve these binary operations step by step.

A. Binary Addition: 101110 + 110011

1. Align the numbers:

       101110  
     + 110011
   

2. Add column by column from right to left:

   • 0 + 1 = 1
   • 1 + 1 = 10 (write 0, carry 1)
   • 1 + 0 + 1 (carry) = 10 (write 0, carry 1)
   • 1 + 0 + 1 (carry) = 10 (write 0, carry 1)
   • 0 + 1 + 1 (carry) = 10 (write 0, carry 1)
   • 1 + 1 + 1 (carry) = 11 (write 1, carry 1)

3. Write the final result:

   1100001
   

B. Binary Subtraction: 1011000 - 111111

1. Convert to same number of digits by adding leading zeroes:

   1011000  
   - 0111111  
   

2. Perform subtraction column by column:

   • 0 - 1 → borrow from the next available digit.
   • Subtract step by step using binary borrowing rules.

3. Calculation result:

   0 1