Binary Conversions

Lesson Instructions

Watch and follow the YouTube video, the lesson contains three parts:

  1. Key Information and content - all you need to do here is watch and listen

  2. Learning activity - this activity is a binary to denary and denary to binary quiz, you may want to do your working on paper.

  3. Consolidation - these are past exam question and are for deliberate practice to check your understanding.

Task - Binary Conversions Quiz

Task - Exam Questions - Deliberate Practice

Exam Questions - Binary Conversions

Mark Scheme

Question 1 (a)

1 mark for correct answer, 1 mark for working

  • 64 + 32 + 8 + 1

  • 105

Question 1 (b)

  • Answer: 10011010

  • one mark per nibble if partly wrong

  • Allow 1 mark for 01011001

Question 2

  • 1000 0100

1 mark per nibble, mark right to left.

Question 3

1 mark per bullet to max 2

  • 91

  • Correct working shown.

Award working mark independently of final answer but must be correct (e.g. 1 + 2 + 8 + 16 + 64 / correct binary headings with correct binary underneath)