MATH project

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Across
  1. 1. 66+-22=
  2. 4. -33x-22=
  3. 7. 57+-19=
  4. 9. 50/10=
  5. 11. 35-(-10)=
Down
  1. 2. 19-(-7)=
  2. 3. 15+-5=
  3. 5. -10/5=
  4. 6. -1x-10=
  5. 7. 125/-5=
  6. 8. -4x-20=
  7. 10. 15-(-14)=