Răspuns :
Hei! :)
[tex]a) 13-3-8=10-8=2\\b) 53+14:7-5*7 =53+2-35=55-35=20\\c)18-3-19-34:17= 15-19-2=15-21=-6\\d) 72:6+13-13:2+1=12+13-6,5+1=25-5,5=30,5[/tex]
Explicație pas cu pas:
ღSalutare!ღ
a)13-3-8=10-8=2
b) 53+14:7-5×7=53+2-35=55-35=20
c) 18-3-19-34:17=15-19-2=-4-2=-6
d) 72:6+13-13:2+1=12+13-6,5+1=25-6,5+1=18,5+1=19,5
Succes!;)