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Calculati :
a) 180:6-30:2+824:2=
b) 20007-[5x(81:9x10-72:8)]+110:5=


Răspuns :

a) 30-15+412=15+412=427 b)2007-[5*(9*10-9)]+110:5= 2007-[5*(90-9)]+110:5= 2007-[5*81]+110:5= 2007-405+110:5= 2007-405+22= 1602+22=1624