Year 7

Number systems: Binary - the language of computers

Year 7

Number systems: Binary - the language of computers

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Lesson details

Key learning points

  1. In this lesson, we will be exploring the binary code and its use in computing.

Licence

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5 Questions

Q1.
Write 101(base 2) in base 10.
2
3
4
Correct answer: 5
Q2.
Write 111(base 2) in base 10.
3
4
6
Correct answer: 7
Q3.
What is 101(base 2) x 101(base 2) in base 2?
10201 (base 2)
110001 (base 2)
Correct answer: 11001 (base 2)
Q4.
write 23(base 10) in base 2.
10101
Correct answer: 10111
11000
Q5.
Why is base 2 called binary?
because it has 3 symbols
Correct answer: Because it only has 2 symbols
Because it use one symbol