Lesson details

Key learning points

  1. In this lesson, we will recap our previous learning on data representation within this unit to see how much we can remember. We will review number bases, binary maths and hexadecimal.

Licence

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3 Questions

Q1.
Convert this HEXADECIMAL number to DECIMAL: FF
225
Correct answer: 255
256
Q2.
Convert this DECIMAL number to HEXADECIMAL: 128
1
8
Correct answer: 80
Q3.
Convert this HEXADECIMAL number to BINARY: A3
Correct answer: 10100011
10110011
163

3 Questions

Q1.
Perform the binary addition: 1111 + 100 + 1010
011101
11001
Correct answer: 11101
Q2.
Perform the binary addition: 11111 + 100 + 10
Correct answer: 100101
10101
11111
Q3.
Perform the binary addition: 10 + 1010 + 100
Correct answer: 10000
10100
1120