Represente na reta numérica cada uma das adiçoes a seguir :

A = (+ 7) + ( - 4 )
B = ( + 8 ) + (+ 2 )
C= ( - 8 ) + ( + 2 )
D = ( + 6 ) + ( - 5 )
E = ( - 3 ) + ( - 7 )
F = ( - 5 ) + ( + 5 )
G = ( - 2 ) + ( + 5 )
H = ( + 3 ) + ( - 4 )
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