sammy111104
sammy111104 sammy111104
  • 16-01-2017
  • Mathematics
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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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Redsky07
Redsky07 Redsky07
  • 17-01-2017
-50 to -51; 49 to 50; -48 to -49; 48 to 49; 50 to 51

I just add one
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