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Efectuati
a)(0,72)-(+0,28)=
b)(+13)-(-12,64)=
c)(-3,4)-(-2,86)=
d)(-4,52)-(5,46)=
e)(+2,4)-(-3,5)=
f)(-1,92)+(11,4)
g)(-5,03) (+6,4)=


Răspuns :

a)(0,72)-(+0,28)=0,44
b)(+13)-(-12,64)=13+12,64=25,64
c)(-3,4)-(-2,86)=-3,4+2,86=-0,54
d)(-4,52)-(5,46)=-9,98
e)2,4-(-3,5)=2,4+3,5=5,9
f)(-1,92)+(11,4)=9,48
g)(-5,03)•(+6,4)=-32,192