2-Calcule :
(A) ( - 178 ) + ( - 109 ) =
(B) ( - 205 ) + ( + 205 )=
(C) ( + 341 ) + ( - 207 ) =
(D) ( - 252 ) + ( 96 ) =
(E) ( + 1256 ) + ( 864 ) =
(F) ( - 632 ) + ( - 368 ) =
Soluções para a tarefa
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2
Resposta:
A) ( - 178 ) + ( - 109 ) =
-178-109=-287
(B) ( - 205 ) + ( + 205 )=
-205+205=0
(C) ( + 341 ) + ( - 207 ) =
341-207=134
(D) ( - 252 ) + ( 96 ) =
-252+96=156
(E) ( + 1256 ) + ( 864 ) =
1256+864=2120
(F) ( - 632 ) + ( - 368 ) =
-632-368= - 1000
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