Number Series Flashcards
7 cards from real Wonderlic Personnel Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Number Series flashcards as text
What number comes next: 6, 11, 21, 41, ?
Answer: 81
Each term doubles then subtracts 1, so 41 × 2 − 1 = 81.
What number comes next: 1, 8, 27, 64, ?
Answer: 125
These are perfect cubes, so the next is 5³ = 125.
What number comes next: 90, 80, 70, 60, ?
Answer: 50
Each term decreases by 10, so 60 − 10 = 50.
What number comes next: 2, 3, 5, 9, 17, ?
Answer: 33
Each term doubles then subtracts 1, so 17 × 2 − 1 = 33.
What number comes next: 12, 24, 12, 24, ?
Answer: 12
The series alternates between 12 and 24, so the next is 12.
What number comes next: 5, 11, 17, 23, ?
Answer: 29
Each term increases by 6, so 23 + 6 = 29.
What number comes next: 1, 3, 6, 10, 15, ?
Answer: 21
These are triangular numbers; the difference grows by 1, so 15 + 6 = 21.