SOLUTION: The sum of all the digits of the numbers from 1 to 100 is
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Question 341060
:
The sum of all the digits of the numbers from 1 to 100 is
Answer by
Alan3354(69443)
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There 100 numbers.
Arrange them as 50 pairs:
1 + 100
2 + 99
3 + 98
etc.
50 pairs, each pair = 101
50*101 = 5050