Răspuns :
a) 28+(-41)+18+(-19)+19
=28-41+18
=5
c) 400+(-157)+101+(-43)+99
=400-157+101-43+99
=600-157-43
=600-200
=400
e) 651+(-289)+29+(-11)+30
=651-289+29-11+30
=710-289-11
=410
a) 28+(-41)+18+(-19)+19
=28-41+18
=5
c) 400+(-157)+101+(-43)+99
=400-157+101-43+99
=600-157-43
=600-200
=400
e) 651+(-289)+29+(-11)+30
=651-289+29-11+30
=710-289-11
=410