Number Sequence Practice
Number-series pattern recognition, on its own — today's free daily drill rotates a new set every day. No signup, runs entirely in your browser.
15 questions · 3 minutes · today's set
Number-series pattern recognition — arithmetic, geometric, quadratic, Fibonacci-like and alternating-step sequences. +1 per correct answer, −1 per wrong answer, skips are free. Same 15 questions for everyone today — a new set rotates in tomorrow.
This is today's shared set — every visitor gets the same 15 questions in the same order today, so it's comparable, and it changes at the next UTC day. For probability & EV instead, that's the separate Daily Probability drill.
Want probability & EV instead?
That's a separate skill with its own daily drill — see Probability & EV Practice. Or try the original combined 60-question Sequences & Probability test.
FAQ
What kinds of sequences are in the daily drill?
15 questions in 3 minutes, mixing arithmetic (constant difference), geometric (constant ratio), quadratic-feel (constant second difference), Fibonacci-like (each term is the sum of the previous two), and alternating-step patterns. Each is built by actually iterating the rule, not a hand-derived formula, so the "next term" is always provably correct.
Why is this separate from probability & EV now?
They're unrelated skills — pattern recognition in a series versus probability and expected-value calculation — bundled together in one legacy test only because they're both "generic firm-test" formats. This page is pattern recognition only; see the separate Daily Probability & EV drill for probability.
Is there a longer, combined version?
Yes — the original 60-question Sequences & Probability test mixes both skills in one realistic-length fixed set. This daily drill is a shorter, sequences-only, rotating alternative for regular practice.