Decimal addition and subtraction

123456789101112
Across
  1. 6. 56210.49511-42162.87121
  2. 7. 21.61-8.42
  3. 9. 64215.89123-29862.65162
  4. 11. 1621.3569234-591.4812634
  5. 12. 621.989+92.321
Down
  1. 1. 96210.526-39821.612
  2. 2. 1286.512864+2611.638790
  3. 3. 65216.289621-9123.162389
  4. 4. 95826.7123+26192.1987
  5. 5. 9.6210+0.2798
  6. 8. 9293.262+1861.853
  7. 10. 6.562+0.587