Number sequence test practice for trading firms
Flow Traders’ numerical test covers “mental math and sequences skills”, and Akuna and Maven candidates report sequence rounds too. Practice finding the next term fast, from simple gaps to interleaved series, doubling gaps and sums of earlier terms.
Choose 26 in 25 or 30 in 6, multiple choice or typed answers. Every answer names the rule behind the sequence.
Or try the free ten-sequence drillWhat comes next?
7, 14, 21, 35, 56, 91, ?
What the firms say
- Flow Traders: Graduate Trader applicants “complete a numerical test to evaluate your mental math and sequences skills.”
- Akuna Capital candidates report sequences in its HackerRank trading test (30 sequences and 30 probability questions on one 28-minute clock in the 2027 cycle); Akuna does not publish the format.
- Maven Securities candidates report a short sequences round; Maven’s published assessments are numerical, probability, coding and Arctic Shores.
Firm guides: Flow Traders · IMC · Akuna Capital
Reported formats, and our timed mock
No firm publishes its question counts, timings or scoring. The timed formats below are what candidates and prep sites report for recent cycles; use them as practice settings and follow the instructions in your own invitation.
26 questions in 25 minutes
Reported for the sequences part of Flow Traders’ numerical test, with a point lost for each wrong answer.
Practice this format30 questions in 6 minutes
Reported by Maven Securities candidates for a fast sequences round. Akuna’s 2027 trading test is reported to open with 30 sequences on a shared clock.
Practice this format
What our questions cover
- Constant, growing and doubling gaps
- Multiplying rules such as × 2 + 1 and × 3 − 2
- Alternating operations (× 3, + 2, × 3, + 2)
- Two interleaved series
- Squares, cubes, primes and products of consecutive numbers, with offsets
- Sums of the previous two or three terms
- Second differences: gaps that themselves grow
Free drills
- Number sequences drill
Ten “what comes next” sequences in five minutes, from simple gaps to interleaved and multi-step rules.
Drill number sequences, then sit the timed test
Choose 26 in 25 or 30 in 6, multiple choice or typed answers. Every answer names the rule behind the sequence.
Or try the free ten-sequence drillHow to get faster
- Write the gaps first. If the gaps are not constant, write the gaps of the gaps.
- If the numbers jump up and down, try splitting odd and even positions into two series.
- If the numbers grow fast, try ratios: × 2, × 3, or × 2 plus a constant.
- Know squares to 30², cubes to 10³ and primes to 100 on sight.
- Check your rule on every shown term, not just the last two, before answering.
Common questions
What is on the Flow Traders numerical test?
Flow Traders says its Graduate Trader numerical test evaluates “mental math and sequences skills.” It does not publish counts or timings. Candidates and prep sites report a math section of 60 questions in 6 minutes and a sequences section of 26 questions in 25 minutes, with a point lost for each wrong answer.
Are the sequence questions multiple choice?
Reports differ by firm and year. Our mock lets you answer with four options or by typing the next number, so you can practice both.
How do I get faster at number sequences?
Learn a fixed order of checks (gaps, gaps of gaps, ratios, alternating positions, known number families) and drill it until it is automatic. Every answer in our review names the rule, so you can see which family you missed.
Choose 26 in 25 or 30 in 6, multiple choice or typed answers. Every answer names the rule behind the sequence.
Or try the free ten-sequence drillMore trading test practice
Firm statements checked November 2026: Optiver Europe recruitment FAQ · Optiver Sydney campus recruiting FAQs · Optiver US campus recruiting Q&A · Maven Securities emerging talent · Flow Traders graduates · IMC recruitment process.
Optiver, Maven Securities, Flow Traders, Susquehanna International Group (SIG), IMC, Akuna Capital and PEAK6 are trademarks of their respective owners. Game Assessment Prep is an independent practice site and is not affiliated with, endorsed by or sponsored by any of these firms. Every question is original; none is taken from a firm’s assessment or another prep provider.