0
You can calculate that as follows: 85 - 15 - 1. If you want to include both endpoints (greater or equal to 15, less than or equal to 85), the calculation becomes 85 - 15 + 1. You can verify that this is correct, using smaller numbers - for example, "how many numbers are between 1 and 5".
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Earn +20 ptsQ: How many counting numbers are there greater than 15 but less than 85?
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Continue Learning about Math & Arithmetic
How many counting numbers less than 30 are composite but neither odd nor even?
None. All counting numbers are even or odd.
Are integers counting numbers?
No- not exactly. Negative integers are not counting numbers. Positive integers are identified with counting numbers. Many authors like to start with zero as a counting number.
How many counting numbers less than 30 are either odd or even but not both?
All numbers are either odd or even, none are both, so less than 30 there are 29 counting numbers that are either odd or even but not both. (Assuming you mean starting to count with 1.)
How many composite numbers are greater than forty but less than fifty?
Five.
How many odd numbers are greater than 6 less than 19?
Six
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