numbers

12345678
Across
  1. 1. 7-5
  2. 5. 1+9
  3. 7. 14/2
  4. 8. 7+4
Down
  1. 1. 6+7
  2. 2. 6+9
  3. 3. 13-9
  4. 4. 2x6
  5. 6. 1+8