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Mathematics, 17.01.2020 00:31 allieflow5380

Urgent : what is the value of the expression (1 - 2) - (3 - 4) - (5 - 6) - etc. ect. - (99 - 100)?
a.-50 b.49 c.-48 d.48 e.50
pls explain how you got the answer!

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