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Number Series Flashcards

7 cards from real CAT4 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

  1. What number comes next? 3, 7, 11, 15, ?

    Answer: 19

    The series increases by 4, so 15 + 4 = 19.

  2. What number is missing? 1, 8, 27, ?, 125

    Answer: 64

    These are cubes; 4 cubed = 64.

  3. What number comes next? 90, 81, 72, 63, ?

    Answer: 54

    Each term decreases by 9, so 63 - 9 = 54.

  4. What number comes next? 2, 4, 8, 16, 32, ?

    Answer: 64

    Each term doubles, so 32 x 2 = 64.

  5. What number is missing? 11, 22, 33, ?, 55

    Answer: 44

    The series counts by 11, so the missing term is 44.

  6. What number comes next? 1, 2, 4, 7, 11, ?

    Answer: 16

    The amount added rises by one each time (1,2,3,4,5), so 11 + 5 = 16.

  7. What number comes next? 1000, 100, 10, ?

    Answer: 1

    Each term is divided by 10, so 10 / 10 = 1.