Adition (easy)

1234567
Across
  1. 1. 462+483
  2. 5. 250000+750000
  3. 6. 559+209
  4. 7. 700+80+9
Down
  1. 2. 4980+90
  2. 3. 790+30
  3. 4. 48+52
  4. 5. 189000+907+80