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Across
  1. 3. -21:(-7)
  2. 7. (-8) x 4
  3. 8. 16 : (-3)
  4. 9. (-3)-(-4)=
  5. 11. -3 x(-7)
  6. 12. -35 x 12
  7. 14. (-10)-5=
  8. 15. 5+(-8)=
Down
  1. 1. -2 x(-19)
  2. 2. 27:(-3)
  3. 4. 8-(-3)=
  4. 5. (-4)+6=
  5. 6. 9 x 8
  6. 10. 7 x(-5)
  7. 13. 2 x 6