Numbers

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1234567
Across
  1. 1. 7-1=?
  2. 2. 8-3=?
  3. 3. 2+1=?
  4. 4. 2-1=?
  5. 7. 6+4=?
Down
  1. 1. 9-2=?
  2. 2. 2+2=?
  3. 3. 10-8=?
  4. 5. 4+4=?
  5. 6. 5+4=?