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Lesson details
Key learning points
- In this lesson, we will be looking at adding and subtracting numbers in different bases.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
What is 15(base 6) written in base 10?
15
31
Q2.
What is 21(base 5) written in base 10?
15
31
Q3.
What is 31(base 5) + 22(base 3) in base 10?
31 + 22 = 55
8 + 8 = 16
Q4.
What is 101(base 2) x 101(base 2) in base 10?
101 x 101 = 1111
2 x 2 = 4
Q5.
What is 10101(base 2) written in base 10?
10,101
3