How to pass EASA Part 66 Module 1 (Mathematics)

Module 1 is the maths foundation of the EASA Part 66 licence, and it's one of the more approachable modules — the content is GCSE-level, and the exam is multiple-choice. The challenge is accuracy under time pressure. This guide walks through what to expect and how to revise efficiently.

Know what's in the exam

Module 1 splits into three areas: 1.1 Arithmetic, 1.2 Algebra and 1.3 Geometry. The paper is multiple-choice, and the standard Part 66 pass mark is 75%. Exact question counts and timings can vary by examination authority, so confirm the details for your exam against the current official syllabus.

Build speed on the basics

Most marks come from routine operations — fractions, percentages, ratios, transposing formulae and the basic trig ratios. The difference between passing comfortably and running out of time is how automatic these are. Drill them until they're second nature rather than something you have to work out from scratch.

Practise with exam-style questions

Reading notes isn't enough — you pass by answering questions. Work through plenty of multiple-choice questions, always checking the worked solution for anything you get wrong, and keep a note of the topics that trip you up so you can target them. Timed mock tests are the best way to build exam stamina and pace.

Exam-day tips

• Read each question carefully — wrong-answer options are often near-misses of common mistakes.
• Watch your units and convert consistently before you calculate.
• Don't get stuck; flag a hard question, move on, and come back to it.
• Sanity-check answers — a quick estimate catches slips.