Addition

12345678910
Across
  1. 1. 335+346
  2. 4. 527+254
  3. 5. 526+117
  4. 7. 228+206
  5. 10. 616+344
Down
  1. 2. 648+213
  2. 3. 124+249
  3. 6. 429+35
  4. 8. 157+233
  5. 9. 758+137