They are: 43+47 = 90
172
The sum of the numbers 1 through 27 is 378.
The sum of the numbers from 1 through 100 is 5,050.
39 and 51
91
The prime numbers between 90 and 100 are 97. To find the sum of prime numbers between 90 and 100, you simply add 97 to get the total sum. Therefore, the sum of prime numbers between 90 and 100 is 97.
-20
They are: 43+47 = 90
Well, isn't that just a happy little math problem! When you add 90 plus 90 together, you get 180. Just imagine those numbers coming together like old friends, creating a beautiful sum that brings joy to your heart. Remember, there are no mistakes in math, just happy little accidents.
172
The three composite numbers are 28, 30 and 32. Their sum is 90.
40 and 50
40 and 50
the highest sum of the numbers is 17 and the lowest is 1. The only perfect squares in that range are 1,4,9, and 16. That means the following numbers will work: 10,13.18,22,27,31,36,40,45,54,63,72,79,81,88, and 90; that is 16 numbers
The sum is 73+79+83+89 = 324
The sum of the numbers 1 through 27 is 378.