A focused drill pack for OCR J277 GCSE Computer Science Section 1.2 Data Representation. Built for revision lessons, low-stakes starters, or end-of-topic consolidation when students need to nail down the conversion skills that appear in every paper.

What’s inside:

• Section 1: Denary to 8-bit Binary (8 questions)
• Section 2: 8-bit Binary to Denary (8 questions)
• Section 3: Denary to Hexadecimal (6 questions)
• Section 4: Hexadecimal to Denary (6 questions)
• Section 5: Binary to/from Hexadecimal (8 questions)
• Section 6: Binary Addition including overflow (5 questions)
• Section 7: Logical Shifts left and right (5 questions)
• Answers: Worked solutions for every question on the final pages

Every section opens with a worked example using the column-value method, divide-by-16 method or nibble-substitution method as appropriate. Challenge questions are marked with a star and stretch students who need full marks on the 8-mark data representation question.

Differentiation built in: Sections 1-4 are foundation-friendly, Sections 5-7 stretch to higher-tier students. Each question references the spec section, and a quick-reference nibble-to-hex table is included for students who need scaffolding.

Print one copy per student. Keep the answer pages for marking. Works as a homework, lesson starter, intervention pack, or revision station.