calcule
a)-7+17
b)+16-10
c)-1+1
d)-3-16
e)+8-22
f)+5-21
g)+1+14
h)-23+29
i)-93+72

vamos calcular
a)-20+7+11
b)-15-5-7
c)14+29-11-16
d)29+33-72
e)35-100-101+182
f)26-42+17+25-26
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