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Subjects / LC Computer Science / Strand 2: Core concepts

Binary, hexadecimal and denary

Converting between number bases, binary arithmetic and two's complement.

5th Year6th Year HigherOrdinary
15practice questions

Multiple choice: 1 · Numeric answer: 10 · Put in order: 1 · Short answer: 3

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Numeric answer
Convert the unsigned binary number 10110110 to denary.
8-bit place values1286432168421Each place is worth double the place on its right
Whole numbers, decimals (2.5) or fractions (3/4).
Hint 1

Write the place values 128, 64, 32, 16, 8, 4, 2, 1 above the bits.

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