Quiz Answer Key and Fun Facts
1. 300, 600, 900, ___, 1500, 1800.
What's the missing number in this sequence?
2. 1980, 1984, 1988, 1992, ___, 2000.
Which number is missing?
3. 800, ___, 200, 100, 50, 25
What number is missing?
4. 1, 2, 3, 5, _, 13
What's the missing number?
5. 54, 45, __, 27, 18, 9.
Which number is missing?
6. 10, 32, 54, 76, 98, __.
Which number completes this sequence?
7. 32, 143, 254, 365, ___, 587.
What number is missing?
8. 69, 79, 89, 99, ___, 119.
What is the missing number?
9. 486, 162, 54, 18, __, 2.
What's the missing number in this sequence?
10. 42, 36, 30, 24, __, 12
What's the missing number in this sequence?
Source: Author
yency
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NatalieW before going online.
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