Arithmetic and percentages math tests assess a pilot applicant's ability to apply elementary mathematics fluently without unit errors.1 Core topics also include the area and volume of simple shapes, Pythagoras' theorem, and converting between metric and imperial units.1 Arithmetic questions are typically multiple-choice and administered under strict time limits, sometimes including a "none of these" option.23

The maths section of a flight school's COMPASS test in 2022 had 24 questions to be completed in 20 minutes.2 The total duration of the Mollymawk test battery is approximately 3 hours.4 Some mathematics tests in selection processes consist of 16 multiple-choice questions in 30 minutes, 20 multiple-choice questions in 45 minutes, or 20 multiple-choice questions in 60 minutes. Another exam has 18 multiple-choice questions in 60 minutes. In one selection process, prospective pilots had 30 minutes to solve 30 problems.

These tests measure both speed and accuracy and are computer-based.3 A low mark with few errors is possible because candidates are measured against others, not a fixed percentage.3 Many problems are set in practical flying situations involving fuel, speed, and distance.1 Wizz Air provides preparation tips that include mental arithmetic and mathematics.4 Jet2 application guidance reminds candidates to complete assessments themselves without external assistance.4

Arithmetic evaluations for pilots generally encompass mental calculations, fractional and percentage values, proportional relationships, measurements and their transformations, and the equation Distance = Speed × Time. The Mollymawk test battery includes skills tests in English, Math & Science and Aeronautics.4 The easyJet technical selection includes aptitude tests of motor skills and spatial awareness, as well as computer-based tests on maths and tech skills.4 Skywings administers a mathematics and physics examination consisting of 20 questions, where a minimum of 15 out of 20 correct answers is needed for a passing grade.