Numbers

12345678
Across
  1. 2. 12-4=
  2. 3. 14+1=
  3. 6. 4x3=
  4. 7. 20-17=
  5. 8. 10-3=
Down
  1. 1. 3-2=
  2. 2. 6+5=
  3. 3. 2x2=
  4. 4. 55-50=
  5. 5. 6+3=
  6. 6. 5+5=
  7. 7. 8-6=
  8. 8. 77-71=