The sum of two numbers is the result of multiplying those numbers together. It can also be referred to as repetitive addition.
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The first five prime numbers are 2, 3, 5, 7, 11. The sum of these five numbers is 28.
multiply the mean by the amount of numbers
The sum of two numbers is an equation. Depends on the two numbers being added what the answer will be.
The sum of the first n cubed numbers is: [n*(n+1)/2]2 which is the same as the square of the sum of the first n numbers.
The answer is the 100th triangular number so you can use the formula (n(n+1))/2.n = 100 so the sum is (100 x 101)/2 = 10100/2 = 5,050.