Răspuns:
a. =27-12=15
b.=-3
c.=3
d=-1+8=7
e.=-10
f.=-1+8-9+10-11=7-9+10-11=-2+10-11=8-11=-3
g.=-1+8=7
h=-2-16=-18
i.-2+100-90=98-90=8
j.-9-10-6-5=-19-6-5=-25-5=-30
a. 12+15 - 12=27-12=15
b.12-15= - 3
c. 15-12=3
d.7-8+8= - 1+8=7
e.-1-2-3-4= - 10
f.4-5+8-9+10-11=-3
g.6-7+8=7
h.12-14-16=-18
i.124-126+100-90=8
j.-4-5-10-6-5=-9-10-6-5=-25-5=-30
