Decimal Addition and Subtraction

123456789101112
Across
  1. 4. 100.354+21.228
  2. 5. 89.9124+79.3330
  3. 8. 252.9-223.8
  4. 10. 105.9277-90.9816
  5. 11. 87.9449+69.6220
  6. 12. 16.7-22.3
Down
  1. 1. 15.789-12.987
  2. 2. 39.5687+23.7737
  3. 3. 35.3564-9.6671
  4. 5. 7.13+8.368
  5. 6. 34.972-13.833
  6. 7. 1243.97+2397.83
  7. 9. 1.3629+1.2461