- Thread starter sufinaz
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Welcome to the forum. The way it works here is that in the end you give us the solution and we help you get there. We just do not give final answers.100-99+98-97+96-95+...…….and so on.....+2-1

what is the final answer?

MarkFL gave you a wonderful hint. Are you able to work with that? You are just adding 1's and the real question is how many 1's.

Post back and let us know how you are making out with this problem.

it is actually asking work out the final answer?Hello, and welcome to FMH!

What if you group as follows:

(100 - 99) + (98 - 97) + (96 - 95) + ... + (2 - 1)

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What can you do with the hint I provided?it is actually asking work out the final answer?

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So you got the final answer!every two number provides 1, 100 divides by 2= 50

that's what I understood