Răspuns:
225:5-5×54×7-21:7=
45-5×54×7-3=
40×54×7-3=
15120-3=15117
Am sa fac direct
225:5-270×7--21:7
225:5-1890--21:7
45-1890--3
1890-45-3=1842 sper ca team ajutat
