Binary, denary and hexadecimal patterns represent numbers.
Convert the binary pattern 1100 1010 to hexadecimal.
Mark scheme
Award one mark for each correct digit in the correct position:
- C (1)
- A (1)
Answer: CA
Example answers and how they were marked
Full marks2/2
CA
Why: Each nibble is one hexadecimal digit: 1100 = C, 1010 = A: both digits are correct (2).
Some marks1/2
C10
Why: One digit is correct (1), but the second is written as 10 in denary instead of A.
No marks0/2
AC
Why: The digits are the wrong way round, so neither is in the correct position.