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Respondido

a) ( + 35 ) + ( + 12 ) = e) ( - 18 ) + ( - 78 ) =

b) ( - 23 ) + ( + 54 ) = f) ( - 13 ) + ( - 15 ) =

c) ( - 49 ) + ( + 23 ) = g) ( - 18 ) + ( + 54 ) =

d) ( - 37 ) + ( + 29 ) = h) ( + 15 ) + ( + 35 ) =

Resposta :

ESTELACHCONDORION

Resposta:

a)(+35)+(+12)=-23

b)(-23)+(+54)=+31

c)(-49)+(+23)=-26

d)(-37)+(+29)=-12

e)(-18)+(-78)=+96

f)(-13)+(-15)=-28

g)(-18)+(+54)=-44

h)(+15)+(+35)=-50

Ja estudei sobre isso negativo e positivo

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