The solidus
There are an infinite number of numbers. 2 is an example of one of the numbers between 1 and 69.
pic the number between the middle one's e.g 1,3,4,6,8,9 the median would be 5 because it is between the 2 middle numbers
One way to get a number between two numbers - specifically, the number that is exactly in the middle between both - is to take the average of the two numbers. Just add the two numbers, and divide the result by 2.
There is no whole number between 2 and 3. But decimals like 2.1, 2.2, 2.3 etc can be considered numbers between 2 and 3
2 3 5 7
There are infinitely many numbers between 7.31 and 7.32. One example is 7.311
There is only one prime number between 1 and 2, this is 2. The sum is therefore 2.
2 , between every two odd numbers there is one even number
Add them together and divide by 2 will give one of the rational numbers between two given rational numbers.
Since we are talking for the sum of digits, then we are talking about 2-digit numbers between 1 and 100, which are 90 numbers (10 to 99). From these numbers only half of them satisfy the above condition, that is 45 numbers. So 50% of 2-digit numbers between 1 and 100 have an odd sum of their digits.
Real numbers are infinitely dense. That means that between any two real numbers, there are infinitely may real numbers. One example: 2.00135
They are the numbers that have more than 2 factors in them because a prime number has only 2 factors which are itself and one
There are no even prime numbers except for 2 because if it is even then it can divide by 2 and then wont only by divisible by 2 numbers it self and one.
The question is equivalent to asking for two consecutive whole numbers between -7.7 and +7.7 So one possible answer is -2 and -1.
The product between the consecutive prime numbers of 31 and 29 yield a result of 899.
A whole lot of numbers! The simplest example would probably be 0.3. To be exact, there exist uncountably infinitely many real numbers between any 2 distinct real numbers.