Starter quiz
- Match the base value to the correct number system.
- base-10⇔decimal ✓
- base-2⇔binary ✓
- base-16⇔hexadecimal ✓
- Which of the following is not a hexadecimal digit?
- 1
- 0
- A
- F
- H ✓
-
- ______ numbers are often used to represent colour codes.
- 'hexadecimal ' ✓
- What letter represents the decimal value 14 in hexadecimal?
- D
- E ✓
- F
-
- The hexadecimal value C is equivalent to the binary value ______.
- 1000
- 0110
- 1100 ✓
- 0011
-
- Which of these statements is false?
- Web developers use hexadecimal values to represent colours, like #FF6600.
- Hexadecimal is faster for the computer. ✓
- Hexadecimal is easier for humans to read and write compared to binary.
- Hexadecimal shortens binary numbers for easier reading.
-
Exit quiz
- What is the hexadecimal number F5 in decimal?
- 245 ✓
- 255
- 244
- 254
-
- What is the hexadecimal number 6C in decimal?
- '108' ✓
- Match the decimal number to its hexadecimal equivalent.
- 156⇔9C ✓
- 100⇔64 ✓
- 200⇔C8 ✓
- The binary number 10011001 is ______ in hexadecimal.
- '99' ✓
- The hexadecimal value F1 is equal to which binary value?
- 11111111
- 11111001
- 11110001 ✓
- 10011001
-
- The hexadecimal value BD is equal to the binary value ______.
- '10111101' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Hexadecimal is a base-16 number system.
- Binary numbers can be converted to and from hexadecimal.
- Decimal numbers can be converted to and from hexadecimal.
Common misconception
You have to convert an 8 bit binary number in one go.
As a hexadecimal digit can be represented by 4 binary digits, it is useful to convert binary numbers in nibbles (4-bits at a time). This way each digit can be converted separately and then recombined for the final value.
Keywords
Hexadecimal - a base-16 number system that uses the digits 0 to 9 and the letters A, B, C, D, E and F
Decimal - a base-10 number system that uses the digits 0 to 9
Binary - a number system that uses the digits 0 and 1 to represent data
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