Question

Calcule :

a) -7+8-3-8 =

b) +5-11+5+11=

c) +4-3+40-30+400-300=

d)-40-7-5+2-83+38=

e)(+27-14)+(-27+14)=

Answer 1

a) = -10
b) =  10
c) = 110
d) = -95
e) = 0