2. Why is Hexadecimal useful?

3. Using the table below, 3 in Decimal is what in Hexadecimal?

4. Using this table, 'A' in Hexadecimal is what in Decimal?

5. 16 in Hex is what in Decimal? Point out the error in the calculation below.

6. 21 in Decimal is ……..? Is the calculation below correct?

7. 1A in Hex is 26 in Decimal - True or False?

8. What is 1E (Hex) in Decimal?

9. What is 18 (in Hex) in Decimal?

10. 20 in Decimal is what in Hex?

11. What is E3 (in hex) as a Binary number?

12. What is D1F (in hex) as a Binary number?

13. Hexadecimal numbers are often used to represent colours within HTML or CSS.

14. By changing the intensities of red, green and blue, we can create almost any colour. Fill in the blanks

15. A Media Access Control (MAC) address is a number which uniquely identifies a device on the internet. Is this Hex?