Respostas

2013-06-05T10:43:44-03:00

j) -25-(-5)-30 =

-25 +5 -30 =

-55 +5 = -50

    

l)-50-(+7)-43 =

-50 -7 -43 = -100

     

m)10-2-5-(+2)-(-3) =

10 -7 -2 +3 =

13 -9 = 4

 

n)18-(-3)-13-1-(-4) =

18 +3 -14 +4 =

25 -14 = 11

 

o)5-(-5)+3(-3)+0-6 =

5 +5 +3 -3 +0 -6 =

13 -9 = 4

 

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