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The highest 3-digit number is 999. It's the 999th counting number.
The first 99 counting numbers have fewer than 3 digits.
So there are (999 - 99) = 900 positive 3-digit numbers.
The first is 100, the last is 999.
100 + 999 = 1,099
101 + 998 = 1,099
102 + 997 = 1,099
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There are (900/2) = 450 pairs; each pair adds up to 1,099.
The sum of all pairs is (450 x 1,099) = 494,550 .
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Are all rational numbers positive?
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What is the relationship between neggative positive and positive negative?
Negative number and positive numbers are all numbers. Negative numbers are just positive numbers multiplied by -1.
What are all the natural numbers?
All the positive real numbers are natural numbers.
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No. All numbers greater than zero are positive real numbers. Integers are whole numbers (positive or negative) and therefore, don't include numbers with decimals.
Are positive and negative numbers integers?
yes integers are all numbers negative and positive
