ADDITION/SUBTRACTION

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Across
  1. 3. 5,043 + 1,111
  2. 6. 990 + 165
  3. 7. 5,000 - 199
  4. 8. 8,999 + 512
Down
  1. 1. 1,000 - 185
  2. 2. 2,000 - 1,540
  3. 4. 7,000 - 2,809
  4. 5. 3,047 + 1,502