1, 10, 100 and 1000 More or Less

Edit Answers
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Across
  1. 4. 9863 - 40 =
  2. 5. 9612 - 2000 =
  3. 6. 3629 - 300 =
  4. 8. 3501 + 20 =
  5. 11. 4998 - 40 =
  6. 12. 5010 + 1 =
  7. 13. 2190 + 200 =
Down
  1. 1. 6436 + 60 =
  2. 2. 7982 - 50 =
  3. 3. 5993 - 1000 =
  4. 5. 7882 + 100 =
  5. 7. 5040 + 5 =
  6. 8. 1707 + 2000 =
  7. 9. 1114 - 10 =
  8. 10. 2021 + 100 =
  9. 11. 4595 + 200 =