Addition and Subtraction

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Across
  1. 4. 876,421+42,968=
  2. 6. 37,689-2,345=
  3. 7. 403-192=
  4. 10. 1,529+451=
  5. 13. 6,176-281=
  6. 15. 73,506-6,568=
  7. 17. 925,383+29,149=
  8. 19. 227,081-162,314=
Down
  1. 1. 51,542-39,629=
  2. 2. 37,689-19,425=
  3. 3. 23,494+49,837=
  4. 5. 3,298-2,345=
  5. 8. 8,485+8,543=
  6. 9. 6,176-281=
  7. 10. 6,292+4,153=
  8. 11. 5,738+889=
  9. 12. 5,562-1,634=
  10. 14. 531+427=
  11. 16. 804-715=
  12. 18. 8,906-5,619=