The answer is -5.
-4 and -5
5 & 10
The formula to sum a series of numbers is: sum = 1/2 x number_of_numbers x (first_number + last_number) So to sum the integers 5 to 500: From 5 to 500 there are 500 - 5 + 1 = 496 integers, so sum = 1/2 x 496 x (5 + 500) = 125240
The integers are -7 and -5.
-4 and -1
It need not be. 2 and 3 are consecutive integers and their sum is 5, not 31.
-15
The integers are 4, 5 and 6.
-3,-4,-5
To find the sum of two integers with different signs, you simply combine them, and give the result the sign of the larger integer. For example, you have two integers: -9 and +5. You combine them, that is the +5 cancels out 5 of the -9, leaving -4.
The integers are 5 and 7.