Numbers

12345678
Across
  1. 2. 34+33
  2. 5. 40-24
  3. 7. 13+4
  4. 8. 15+25
Down
  1. 1. 20-10
  2. 2. 8+8
  3. 3. 25-13
  4. 4. 50+1
  5. 5. 17+2
  6. 6. 30-30