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Binary and decimal numbers

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WorksheetWise · Standard · 1097

Binary and decimal numbers

Work through each question. Show your reasoning where space is provided.

Name: ____________________ · Date: ____________

  1. 1. Convert the decimal integer 117 to unsigned binary without leading zeros.

  2. 2. Convert the unsigned binary number 10110 to decimal.

  3. 3. Convert the decimal integer 141 to unsigned binary without leading zeros.

  4. 4. Convert the decimal integer 93 to unsigned binary without leading zeros.

  5. 5. Convert the decimal integer 119 to unsigned binary without leading zeros.

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WorksheetWise · Standard · 1097

Binary and decimal numbers — Answer key

Work through each question. Show your reasoning where space is provided.

  1. 1. Convert the decimal integer 117 to unsigned binary without leading zeros.

    1110101

    64 + 32 + 16 + 4 + 1 = 117

  2. 2. Convert the unsigned binary number 10110 to decimal.

    22

    16 + 4 + 2 = 22

  3. 3. Convert the decimal integer 141 to unsigned binary without leading zeros.

    10001101

    128 + 8 + 4 + 1 = 141

  4. 4. Convert the decimal integer 93 to unsigned binary without leading zeros.

    1011101

    64 + 16 + 8 + 4 + 1 = 93

  5. 5. Convert the decimal integer 119 to unsigned binary without leading zeros.

    1110111

    64 + 32 + 16 + 4 + 2 + 1 = 119

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WorksheetWise authors these practice questions and translations. Numerical answers are checked by automated tests. Reading and history include marking guidance. These materials have not been independently certified by an exam board.

For South African classrooms, tutors and families. A4 paper is selected initially. Choose practice by the skill being taught and use the separate answers for feedback. These sheets are not CAPS-certified. An Afrikaans edition is available through the language selector.