If you want to get technical, infinite. But, whole numbers? Only one not including 30 and 40; 35.
The sum of the first 40 whole numbers is 780.
41 43 and 47 are the prime numbers between 40 and 50
1,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39 are the composite numbers between 1 and 40.
There are infinitely many numbers between 20 and 40.
The set of positive whole numbers is not closed under subtraction! In order for a set of numbers to be closed under some operation would mean that if you take any two elements of that set and use the operation the resulting "answer" would also be in the original set.26 is a positive whole number.40 is a positive whole number.However 26-40 = -14 which is clearly not a positive whole number. So positive whole numbers are not closed under subtraction.
All positive integers less than or equal to 39 are whole numbers less than 40.
If you restrict yourself to positive whole numbers, there are four.
The whole numbers between 38 and 45 are 39, 40, 41, 42, 43, and 44
39
The whole numbers between 34 and 41 are: 35, 36, 37, 38, 39, 40 Therefore, there are 6 numbers between 34 and 41, not including themselves.
If you want to get technical, infinite. But, whole numbers? Only one not including 30 and 40; 35.
There are 9 numbers between 40 and 50, inclusive. This can be calculated by subtracting the starting number (40) from the ending number (50) and then adding 1 to include both 40 and 50 in the count. So, 50 - 40 + 1 = 9 numbers between 40 and 50.
The sum of the first 40 whole numbers is 780.
37
The prime numbers between 30 and 40 are 31 and 37.The prime numbers between 30 and 40 are 31 and 37.
The odd numbers between 40 and 53 are 41,43,45,47,49,51.