Question

2-Calcule :

(A) ( - 178 ) + ( - 109 ) =

(B) ( - 205 ) + ( + 205 )=

(C) ( + 341 ) + ( - 207 ) =

(D) ( - 252 ) + ( 96 ) =

(E) ( + 1256 ) + ( 864 ) =

(F) ( - 632 ) + ( - 368 ) =

Answer 1

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