Numbers

12345678
Across
  1. 2. Ten minus one is…?
  2. 4. Five minus two is…?
  3. 5. Two plus six is…?
  4. 7. Five plus two is…?
  5. 8. Ten minus five is…?
Down
  1. 1. Twenty minus ten is…?
  2. 3. Eight plus three is…?
  3. 4. One plus one is…?
  4. 6. Six plus six is…?