Answer: -202
Step-by-step explanation:
Lets split this expression in neighbouring pares and calculate the value of each pair .
1-3=-2
2-4=-2
3-5=-2
4-6=-2
**************
101-103=-2
As we can notice the value of each pair is -2
The number of such pairs is 101.
So to get the total amount we have (-2)*101=-202
