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Converting between number bases: AQA GCSE Computer Science questions

Every AQA GCSE Computer Science exam question on 3.3.2 Converting between number bases, 2022–2025, with its mark scheme and examiner’s report.

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Calculations

740 questions

  1. Q01.2

    June 2025 · Paper 2

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  2. Q02.1

    June 2025 · Paper 2

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  3. Q02.1

    June 2024 · Paper 2

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  4. Q02.2

    June 2024 · Paper 2

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  5. Q02.1

    June 2023 · Paper 2

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  6. Q02.2

    June 2023 · Paper 2

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  7. Q01.1

    June 2022 · Paper 2

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  8. Q01.2

    June 2022 · Paper 2

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  9. Q01.3

    June 2022 · Paper 2

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  10. Q01.1

    Specimen · Paper 2

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  11. Q01.2

    Specimen · Paper 2

    The whole paper ↗
All 11 questions on Converting between number bases, as a list
  1. June 2025, Paper 2, Q01.2 (1 mark): State the number of different values that can be represented using three bits. [1 mark]
  2. June 2025, Paper 2, Q02.1 (2 marks): Convert the hexadecimal number 3F into decimal. You should show your working. [2 marks]
  3. June 2024, Paper 2, Q02.1 (1 mark): Convert the binary number 10110111 into decimal. [1 mark]
  4. June 2024, Paper 2, Q02.2 (2 marks): Convert the decimal number 112 into hexadecimal. You should show your working. [2 marks] Answer
  5. June 2023, Paper 2, Q02.1 (1 mark): Convert the decimal number 171 into binary. [1 mark]
  6. June 2023, Paper 2, Q02.2 (2 marks): Convert the hexadecimal number 2D into binary. You should show your working. [2 marks] Answer
  7. June 2022, Paper 2, Q01.1 (1 mark): Convert the binary number 11010100 into decimal. [1 mark]
  8. June 2022, Paper 2, Q01.2 (2 marks): Convert the binary number 10111001 into hexadecimal. You should show your working. [2 marks]
  9. June 2022, Paper 2, Q01.3 (1 mark): State the largest decimal number that can be represented using 6 bits. [1 mark]
  10. Specimen, Paper 2, Q01.1 (1 mark): Convert the bit pattern shown in Figure 1 into decimal. [1 mark]
  11. Specimen, Paper 2, Q01.2 (2 marks): Convert the bit pattern shown in Figure 1 into hexadecimal. [2 marks] Answer:

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