Number Sequences: Medium
IntellectualStep up from easy — interleaved sub-sequences, alternating operations, squaring and square roots mixed into harder numeric patterns.
Overview
The Medium Number Sequences test raises the bar on numeric-pattern reasoning. It draws from 13 sequence types — second-degree progressions (increasing and decreasing steps), alternating add/add and add/multiply patterns, Fibonacci-style recurrences, prime-gap increments, a subtractive recurrence, and five interleaved two-sub-sequence patterns where odd and even positions follow different rules (add/multiply, multiply/square, divide/square-root). Every question offers five multiple-choice options where the wrong answers represent plausible mistakes (wrong operation, off-by-one, one step short).
Assessments
Tested in assessments at KLM.
Could show up in Schuhfried, cut-e / Aon, DLR, ADAPT and SHL-based selections.
Airline mappings are based on public information and may change.
Example: what comes next?
Each item shows a number sequence ending in a blank. Medium sequences hide the rule in how consecutive terms relate — look beyond a single constant step. Pick the next value from the five options.
Each term is the sum of the two before it: 2 + 3 = 5, 3 + 5 = 8, 5 + 8 = 13, so the next is 8 + 13 = 21. The growing gaps rule out a fixed step; 26 is the trap of simply doubling the last term.
Game Phases
Configure
Choose your preferred duration before starting.
Solve
Identify the pattern in each sequence and pick the next number from five options as quickly and accurately as you can.
Review
After finishing, review your score and inspect each question and your answer.
More Practice
Sequences
4 exercisesNumber Sequences: Full Test
The full progress test for number sequences — a mixed drill combining 30% easy, 40% medium and 30% hard sequence types to mirror the difficulty level of real pilot assessments.
Number Sequences: Easy
Spot the pattern and predict the next number in short numeric sequences — the foundation for harder sequence tests.
Number Sequences: Hard
The toughest sequence test — tribonacci, prime-index jumps, interleaved fractions and powers, and multi-operation chains designed to mirror the difficulty level of real pilot assessments.
Letter Series
Spot the hidden rule in a row of letters and pick the next one — the letter analogue of number series, training serial induction on the alphabet.