Hexadecimal digits 0 to 9 and A to F
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. What denary value does the hex digit B represent?
2. Which is the largest single hexadecimal digit?
3. Which of these is a valid hexadecimal digit?
4. How many different digits does hexadecimal use?
5. How many bits does one hex digit stand for?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1C | AA is worth 10, not 11. B is 11. The letters start at 10 and go up in order to F=15. | |
| 2F = 1111 | B0123456789ABCDEF | |
| 3Hexadecimal has 16 digits, counting from 0 to 9 and then A to F | CG is not a hex digit. Hex stops at F=15, because it has only 16 digits (0 to 15). | |
| 4The letter D stands for 13 in hexadecimal | DThe hex digit C, which stands for the denary value 12 | |
| 5A = 11 | EF is the largest single hex digit: denary 15, which fills one 4-bit value | |
| 6G = 16 | FD = 13 |
C
Definitions
0123456789ABCDEF
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
Hex digit A = __ in denary
2.
The largest single hex digit is _
3.
Denary 13 is written as hex digit _
4.
Hex digit F = ____ in 4-bit binary
5.
Each hex digit stands for _ bits (a nibble)
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
A = 10
B
B = 11
C
C = 13
D
D = 13
Question 2
A
F = 16
B
E = 14
C
D = 13
Question 3
A
h = "0123456789ABCDEF"
B
print(h[11]) # A
C
print(h[15]) # F
Question 4
A
# each hex digit = 4 bits
B
A = 1001
C
F = 1111
Question 5
A
0 = 0000
B
9 = 1010
C
F = 1111
Answer Key
Hexadecimal digits 0 to 9 and A to F
Section A: Quick Questions
Q1
A — 11
Q2
B — F (15)
Q3
B — E
Q4
A — 16
Q5
A — 4 bits (one nibble)
Section B: Match the Pairs
Q1
C → The hex digit C, which stands for the denary value 12
Q2
F = 1111 → F is the largest single hex digit: denary 15, which fills one 4-bit value
Q3
Hexadecimal has 16 digits, counting from 0 to 9 and then A to F → 0123456789ABCDEF
Q4
The letter D stands for 13 in hexadecimal → D = 13
Q5
A = 11 → A is worth 10, not 11. B is 11. The letters start at 10 and go up in order to F=15.
Q6
G = 16 → G is not a hex digit. Hex stops at F=15, because it has only 16 digits (0 to 15).
Section C: Definitions
Q1
0123456789ABCDEF — The 16 hex digits: 0-9, then A=10, B=11, C=12, D=13, E=14, F=15. Each digit stands for one 4-bit value, and F (15) is the largest single hex digit.Section D: Fill in the Blanks
Q1
Hex digit A = 10 in denaryQ2
The largest single hex digit is FQ3
Denary 13 is written as hex digit DQ4
Hex digit F = 1111 in 4-bit binaryQ5
Each hex digit stands for 4 bits (a nibble)Section E: Spot the Error
Q1
C — In hexadecimal C stands for 12, not 13. D is 13. The letters go A=10, B=11, C=12, D=13, E=14, F=15.
Q2
A — F is worth 15. Hex has 16 digits but they run from 0 to 15, so no single hex digit is worth 16.
Q3
B — Counting from 0, h[10] is A. h[11] is B, so the index should be 10 to match the comment.
Q4
B — A is 10 in denary, which is 1010 in binary. 1001 is 9.
Q5
B — 9 is 1001 in 4-bit binary (8 + 1). 1010 is 10, which is the hex digit A.