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3 years ago

15

How do i solve this 1-3+2-4... +101-103

1 answer:

rusak2 [61]3 years ago

5 0

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

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