number by dado

1234567
Across
  1. 2. 4+5
  2. 3. 25+15
  3. 4. 18+2
  4. 6. 5-2
  5. 7. 120-30
Down
  1. 1. 40+20
  2. 3. 70-20
  3. 5. 10+1
  4. 6. 20-10