👤
Nhaaha390go
Respondido

05 - Calcule :
a) ( + 15 ) + ( + 23 )
b) (- 45 ) + (-67 )
c) ( + 76 ) + (-45 )
d) ( - 100 ) + ( + 23 )
e) ( + 56 )-(-34)
f) (-90 ) - ( + 65 )​

Resposta :

→ Cálculo :

a) ( + 15 ) + ( + 23 )

15 + 23

38

b) ( - 45 ) + ( - 67 )

-45 - 67

-112

c) ( + 76 ) + ( - 45 )

76 - 45

31

d) ( - 100 ) + ( + 23 )

-100 + 23

-77

e) ( + 56 ) - ( - 34 )

56 + 34

90

f) ( - 90 ) - ( + 65 )​

-90 - 65

-155

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