Number Series Patterns Flashcards
7 cards from real NNAT 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 Patterns flashcards as text
What number comes next? 2, 5, 9, 14, 20, __
Answer: 27
The differences increase by 1 each step (+3, +4, +5, +6, +7), so 20 + 7 = 27.
Find the next term: 1, 10, 2, 20, 3, 30, __
Answer: 4
Two interleaved sequences: 1, 2, 3, 4, ... and 10, 20, 30, ...; the 7th term continues the counting sequence as 4.
What comes next in the series? 1, 8, 27, 64, __
Answer: 125
These are perfect cubes (1³, 2³, 3³, 4³, 5³), so the next is 5³ = 125.
What number comes next? 1, 3, 7, 15, 31, __
Answer: 63
Each term is found by doubling the previous term and adding 1: 31 × 2 + 1 = 63.
Find the next number: 2, 6, 12, 20, 30, __
Answer: 42
The differences increase by 2 each step (+4, +6, +8, +10, +12), so 30 + 12 = 42.
What comes next? 20, 17, 13, 8, 2, __
Answer: -5
The differences decrease by 1 each step (−3, −4, −5, −6, −7), so 2 − 7 = −5.
What is the next number? 3, 9, 6, 18, 9, 27, __
Answer: 12
Two interleaved sequences: odd positions 3, 6, 9, ... (+3 each) and even positions 9, 18, 27, ... (+9 each); the 7th term is 12.
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