decimal addition and subtraction

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Across
  1. 2. 3.2+2.1
  2. 4. 72.18-11.16
  3. 7. 5.23+7.23
  4. 8. 6.72-4.51
  5. 10. 6.9+4.3
  6. 12. 89.62-45.41
Down
  1. 1. 1.23+1.23
  2. 3. 9.876-8.765
  3. 5. 21.81+54.3
  4. 6. 3.2+3.2
  5. 9. 8.79-5.26
  6. 11. 4.26-2.15