Question

determine the sum of 1 + (- 2 )+ 3 + (- 4 )+ 5 + (- 6 )+ ....... + (- 50)​

Answer 1

Answer:

-25

Step-by-step explanation:

computing two numbers at a time,

1-2 = -1

3-4= -1

.

.

49-50= -1

this is being added 25 times.

therefore the answer is 25* (-1) = -25

Answer 2

Answer:

your answer will be -25

hope it helps