There is an infinite amount of numbers that can sum up to 24. Only 23, if you are just counting positive numbers.
Using only sums and differences, and not necessarily all four numbers, 1, 3, 9 and 27 will make all numbers from 0 to 40.
average function
Infinitely many. Start with sums of two whole numbers: 5+4, 6+3, 7+2, 8+1, 9+0, 10+(-1), 11+(-2), ... and infinitely more. Then consider numbers to one decimal place (dp): 4.5+4.5, 4.6+4.4, 4.7+4.3, and infinitely more of those. And then numbers with 2 dp, 3 dp, ... infinitely many dp. Next, consider sums of 3 numbers, 4 numbers, 5 numbers, ... , infinitely many numbers - in each case using numbers with 1 dp, 2 dp, 3 dp, ... infinitely many dp. When you have done all those you can start with multiplications. And then move on to other mathematical operations.
No function will add numbers up and divide the total by zero, as it is a mathematical impossibility to divide by zero. If your question meant to say that you want to divide by the amount of numbers that were summed to make the total, then the function is the AVERAGE function.
There are 22 such numbers.
Infinitely many. 12+11, 13+10, 14+9, ... , 22+1, 23+0, 24+(-1), 25+(-2), ... and then you have sums with numbers to one decimal place (dp) such as 11.6+11.4, and so on. Not forgetting numbers to 2 dp, 3, dp, 4, dp, ... , infinitely many dp. But these are only sums of two numbers. There are sums of 3 numbers, 4 numbers, ... infinitely many.
Sums of one or more of the numbers: 1, 2, 4, 8, 16, and 32.
There are infinitely many composite numbers. There are, therefore, infinitely many subsets of ten such numbers. There are, therefore, infinitely many possible sums.
There are infinitely many ways. First consider sums of two numbers: 12 + 12, 11 + 13, 10 + 14, ... , 1 + 23, 0 + 24, -1 + 25, -2 + 26, ... Then cosider numbers to 1 decimal place (dp): 11.9 + 12.1, 11.8 + 12.2, ... then pairs of numbers to 2 dp, 3 dp and so on, to infinitely many decimal places. That's sums of pairs of number done. Next consider sums of triplets, and then quartets, quintets, and so on, to infinitely many numbers. So that's sums dealt with. Now start with multiplications. In much the same way as with addition, there are infinitely many pairs, triplets and so on. After that you can start looking at exponential, inverse, logarithmic, trigonometric functions.
Two prime numbers can have only one sum, not three different sums!
121
you have to add
216/3 = 72
There is an infinite amount of numbers that can sum up to 24. Only 23, if you are just counting positive numbers.
Using only sums and differences, and not necessarily all four numbers, 1, 3, 9 and 27 will make all numbers from 0 to 40.
Many numbers can be expressed as the sum of two or more consecutive integers. For example, the number 15 can be written as the sum of consecutive integers in three different ways: 15=7+8 15=4+5+6 15=1+2+3+4+5 Look at numbers other than 15 and find out all you can about writing them as sums of consecutive whole numbers.