Addition

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Across
  1. 2. 7168 + 2148
  2. 4. 8502 + 720
  3. 5. 5365 + 1672
  4. 6. 5393 + 292
  5. 8. 8183 + 64
  6. 9. 6720 + 220
Down
  1. 1. 6966 + 1667
  2. 3. 8180 + 1946
  3. 4. 9378 + 417
  4. 7. 5123 + 1561
  5. 8. 7736 + 956