Question

efetue as subtracoes a seguir a)(+17)-(+9)=

b)(-15)-(-7)=

c)(-23)-(-4)=

d)(-42)-(-7)-(-8)=

e)(+5)-(-21)-(+9)=

f)(-71)-0

Answer 1

a) +12
b) -8
c) -19
d) -27
e) -15
f) -71