The numbers less than 9 are 1, 2, 3, 4, 5, 6, 7, and 8. These numbers are considered to be integers, which are whole numbers that are less than 9 and greater than -∞ (negative infinity). In mathematical notation, this set of numbers can be represented as {1, 2, 3, 4, 5, 6, 7, 8}.
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There are infinitely many numbers that are less than 9.
Even with integers, there are 8, 7, 6, ... , 0, -1, -2, and so on for ever.
1,2,3,4,5,6,7,8
composite numbers are less than 12: 4, 6, 8, 9, 10
odd numbers less than 15: 1, 3, 5, 7, 9, 11,13
9 and 15 are the only two odd composite numbers less than twenty.
-0.45 is a negative number. 9/20 = 0.45 which is a positive number. Positive numbers are always greater than negative numbers, so -0.45 is less than 9/20.