zad.4 / str.47
a) -38+45+(-19)=
b) 71+(-49)+(-13)=
c) -27+51+(-78)+26=
d) 73+(-65)+(-46)+39=
a) -38 + 45 + (-19) = 7 + (-19) = -12
b) 71+(-49)+(-13)= 22+ (-13)= 9
c) -27 + 51 +(-78)+ 16= 24+(-78)+16= -54+16= -38
d) 73+ (-65)+(-46)+39= 8 + (-46)+39= -38+39=1
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a) -38 + 45 + (-19) = 7 + (-19) = -12
b) 71+(-49)+(-13)= 22+ (-13)= 9
c) -27 + 51 +(-78)+ 16= 24+(-78)+16= -54+16= -38
d) 73+ (-65)+(-46)+39= 8 + (-46)+39= -38+39=1