Calcati: ;)
a) [(2057-2019)+62]+900=
b) [(43×39+39×57)-242:11]:3878=
c) 47-13[101-(324:18+1):19]:100=
VA DAU COROANA+5 STELE!!!!!!!!https://media.tenor.com/L8PtPfi4BrYAAAAM/health-warning.gif​