Ajutatima si pe mine va rog repede

a) 799,992 + 199,998 = 999,990
b) 370,755 + 3,745 = 374,500
c) 28 - 8 + 10 + 35 = 65
d) 5,000,000 - 49,506 = 4,950,600
e) 5 x 7 + 7 x 3 - (20+12)
=5 x 7 + 7 x 3 - 32
= 35 + 21 - 32
= 24