Brain Teasers
How Many Numbers?
How many one-digit numbers are there (including zero)?
Hint
Think about ALL the numbers.Answer
19.The numbers are: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, -8, and -9.
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