Numbers!

123456789
Across
  1. 2. 0+0=
  2. 4. 8-1=
  3. 6. 1-0=
  4. 8. 2+3=
  5. 9. 1+1=
Down
  1. 1. 4-1=
  2. 3. 5+5=
  3. 4. 3+3=
  4. 5. 4+4=
  5. 7. 10-1=
  6. 8. 2+2=