Addition and Subtraction

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Across
  1. 5. 54+45=
  2. 7. 24-12=
  3. 8. 88-44=
  4. 10. 40+17=
  5. 11. 52+26=
Down
  1. 1. 52+25=
  2. 2. 91-60=
  3. 3. 59-30=
  4. 4. 70+15=
  5. 6. 31-10=
  6. 8. 23+22=
  7. 9. 36+33=