NUMBERS

12345678
Across
  1. 3. 6x9
  2. 4. 20+8
  3. 6. 72+2
  4. 8. 40+57
Down
  1. 1. 70-1
  2. 2. 40+25
  3. 5. 1000+1000
  4. 7. 18x2+20