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Number Sequences and Patterns Flashcards

7 cards from real IBEW 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 Sequences and Patterns flashcards as text

  1. What is the next number in the sequence: 3, 6, 12, 24, 48, ___?

    Answer: 96

    Each term is multiplied by 2, so 48 × 2 = 96.

  2. Find the missing number: 100, 91, 82, 73, ___, 55

    Answer: 64

    Each term decreases by 9, so 73 − 9 = 64.

  3. What comes next: 1, 4, 9, 16, 25, ___?

    Answer: 36

    These are perfect squares (1², 2², 3²…), so the next is 6² = 36.

  4. Which number continues the pattern: 2, 5, 11, 23, 47, ___?

    Answer: 95

    Each term is doubled then incremented by 1, so 47 × 2 + 1 = 95.

  5. Find the next term: 81, 27, 9, 3, ___?

    Answer: 1

    Each term is divided by 3, so 3 ÷ 3 = 1.

  6. What is the missing value: 7, 14, 21, ___, 35, 42?

    Answer: 28

    This is a sequence of multiples of 7, so the missing term is 7 × 4 = 28.

  7. Complete the sequence: 5, 10, 20, 40, 80, ___?

    Answer: 160

    Each term doubles, so 80 × 2 = 160.