Flow Traders Math Test — Free Practice Simulator

The Flow Traders–style numerical screen: 75 multiple-choice questions in 8 minutes, −2 for every wrong answer, pass mark 70. Integer, decimal and fraction arithmetic at roughly 6 seconds per question. Free, no signup — one fixed practice set, the same questions in the same order every time.

This is one fixed set — the same 75 questions in the same order for everyone, every time, so scores here are directly comparable. For a brand new set every day, per-topic practice with explanations, and progress tracking, that's the TradeMind app.

What this test is

Flow Traders — the Amsterdam-headquartered ETF market maker — screens trading applicants with one of the tightest arithmetic tests in the industry. The commonly reported format: 75 questions, 8 minutes, multiple choice, sectioned into integer, decimal and fraction arithmetic, pass mark around 70, wrong answers penalised.

Length75 questions · 8 minutes (≈6.4 seconds per question)
FormatMultiple choice (4 options)
Scoring+1 correct · −2 wrong · 0 skipped
Reported pass mark≈ 70 net
ContentInteger add/subtract/multiply · decimal arithmetic · fraction arithmetic

The math of not guessing

The −2 penalty changes optimal strategy completely. A blind guess on a 4-choice question has expected value of 0.25 × (+1) + 0.75 × (−2) = −1.25 — worse than worthless. Even eliminating one option only brings it to −1. You need to be genuinely torn between two answers before answering beats skipping. The test rewards a specific temperament: fast when sure, ruthless about walking away when not.

How the distractors are built

The wrong options aren't random numbers — they're the answers you'd get from common slips: an off-by-one in the tens digit, forgetting to carry, adding numerators across a fraction sum, misplacing a decimal point. That's what makes MCQ arithmetic harder than it sounds: every careless path you might take has its result waiting for you among the choices. This simulator builds its distractors the same way.

A practical prep sequence

  1. Accuracy first. Untimed drilling until integer and decimal arithmetic is essentially error-free. With a −2 penalty, speed built on shaky accuracy is negative expected value.
  2. Then fraction fluency. The fraction section is where most candidates bleed time — common-denominator sums and near-miss numerator distractors. Instant recognition of equivalent fractions (2/4 = 1/2) defuses most of the traps.
  3. Then full 8-minute runs. Pacing, skip discipline, and the last-90-seconds fatigue only show up in full-length simulation. One or two runs a day, reviewing every miss, beats endless untimed grinding.

FAQ

What is the Flow Traders math test?

Flow Traders screens trading candidates with a timed numerical test widely reported as 75 multiple-choice arithmetic questions in 8 minutes — integers, decimals and fractions — with a pass mark around 70 and a penalty for wrong answers. That's about 6.4 seconds per question with almost no room for error.

Why is the pass mark so brutal?

70 out of 75 with a −2 wrong-answer penalty means the test isn't really asking "can you do arithmetic?" — it's asking "is your arithmetic so automatic that you almost never miss under time pressure?" Two careless errors cost you 4 net points, which is usually the difference between passing and failing.

Should I guess or skip on the Flow test?

Skip. With −2 per wrong answer, a blind guess on a 4-choice question has expected value 0.25×(+1) + 0.75×(−2) = −1.25 points. Unless you can eliminate at least two options, guessing is strongly negative expected value — this is the single most common way candidates sabotage their own score.

How does the format differ from Optiver's 80 in 8?

Both are ~8-minute arithmetic sprints, but Optiver's classic format uses typed answers with a −1 penalty, while Flow's is multiple choice with a reported −2 penalty and a higher relative pass bar. MCQ sounds easier, but the distractors are built from common miscalculations — and the harsher penalty punishes 'close enough' thinking.

Is this the real Flow Traders test?

No — it's an independent practice reconstruction based on publicly available descriptions of the format. They train the same skills and timing, but they are not Flow Traders' actual questions, and the real test's format may evolve. TradeMind is not affiliated with Flow Traders.

TradeMind is an independent training tool and is not affiliated with, endorsed by, or sponsored by Flow Traders or any other firm mentioned. This simulator is a reconstruction based on publicly available descriptions of trading-firm numerical tests, built for practice purposes only. Question content is procedurally generated and does not reproduce actual test material; real assessment formats, question types, and difficulty levels may evolve over time.