+0  
 
0
555
1
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-61 – (83 – |-91|)

 Sep 23, 2016
 #1
avatar+118654 
0

-61 – (83 – |-91|)

 

= -61 – (83 – 91)

 

= -61 - 83 + 91

 

-61 -83 + 91 = -53

 Sep 23, 2016

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