EASA Part 66 Module 1 — Mathematics
Module 1 (Mathematics) is the maths foundation of the EASA Part 66 aircraft maintenance licence, sat by both category B1 and B2 candidates. It covers three areas — arithmetic, algebra and geometry — as multiple-choice questions. Below is the full topic breakdown, and you can practise every area here with original questions and worked explanations.
1.1 Arithmetic
The numerical foundations of aircraft maintenance maths: working confidently with whole numbers, fractions and decimals, and the everyday calculations that underpin the rest of the module.
- Arithmetical terms and signs
- Multiplication and division
- Fractions and decimals
- Factors and multiples (HCF & LCM)
- Weights, measures and conversion factors
- Ratio and proportion
- Averages and percentages
- Areas and volumes, squares, cubes and roots
- Powers, indices and scientific notation
1.2 Algebra
Manipulating symbols and equations — the tools you need to rearrange formulae and solve for unknowns, which recur throughout the B1/B2 modules.
- Evaluating simple algebraic expressions
- Algebraic fractions
- Linear equations and transposition of formulae
- Indices and powers
- Simultaneous and second-degree (quadratic) equations
- Number systems: binary, octal and hexadecimal
- Logarithms
1.3 Geometry
Shapes, graphs and trigonometry — interpreting drawings and diagrams and applying angle and triangle relationships to practical problems.
- Simple geometry and the properties of shapes
- Graphical representation and graphs of functions
- Coordinate geometry (rectangular and polar coordinates)
- Trigonometry: ratios, angles and identities
- Pythagoras' theorem
New to Module 1? Read how to pass EASA Part 66 Module 1, or try free sample questions.
Practise Module 1 with worked explanations
Our question bank holds over 1,000 original EASA Part 66 Module 1 maths questions, each graded by difficulty and paired with a full worked explanation. Take timed mock tests, review your mistakes, and track your accuracy topic by topic.
Get startedThis is independent practice material and is not affiliated with EASA. Always check the current official EASA Part 66 syllabus for the definitive scope and exam requirements.