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2 votes
13-5-7-9-11-13-15= + +=

30

1 Answer

4 votes

Answer:

75

13-5-7-9-11-13-15=+ + = 30

13-5=8

8-7=1

1-9=-8

-8-11=-19

-19-13= -32

-32-15 =-47

-47=2 =30

-47=2-2=30-2

-47=28

-47+47=28+47

=75

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