Numbers

123456789
Across
  1. 2. 8-6=
  2. 3. 12-4=
  3. 4. 4x3=
  4. 5. 55-50=
  5. 6. 6+3=
  6. 8. 3-2=
  7. 9. 10-3=
Down
  1. 1. 14+1=
  2. 2. 20-17=
  3. 4. 5+5=
  4. 5. 2x2=
  5. 7. 6+5=
  6. 9. 77-71=