decimals subration and addition

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Across
  1. 2. 12.7-0.1=
  2. 4. 6.0+0.5=
  3. 6. 1.5+1.5=
  4. 7. 2.5+2.5=
  5. 8. 20.0+20.0=
  6. 9. 90.0-20.0=
Down
  1. 1. 90.0+2.0=
  2. 3. 60.0+8.0=
  3. 5. 50.0+5.0=
  4. 6. 15.0+15.0=