Free practice on Number Bases for Class 6, following the Cameroon primary school curriculum (English subsystem). Every answer is explained, so a parent who is not sure of the answer can still help.
Convert 110 (base 2) to base ten.
Write your answer, then check below.
Answer:
1×4 + 1×2 + 0×1 = 6.
Convert 1111 (base 2) to base ten.
Write your answer, then check below.
Answer:
8 + 4 + 2 + 1 = 15.
Convert 21 (base 5) to base ten.
Write your answer, then check below.
Answer:
2×5 + 1×1 = 11.
Convert 9 (base ten) to base 2.
Answer: A. 1001
9 = 8 + 1 = 1001 in base 2.
Convert 17 (base ten) to base 5.
Answer: B. 32 (base 5)
17 = 3 fives + 2 units = 32 in base 5.
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