number by dado

123456789
Across
  1. 2. 40+20
  2. 4. 10+1
  3. 7. 5-2
  4. 8. 120-30
  5. 9. 25+15
Down
  1. 1. 4+5
  2. 3. 18+2
  3. 5. 70-20
  4. 6. 20-10