number

12345678
Across
  1. 2. eight plus eight
  2. 3. eleven plus nine
  3. 6. nine plus nine
  4. 7. seven plus seven
  5. 8. ten plus seven
Down
  1. 1. seven plus five
  2. 4. ten plus three
  3. 5. six plus nine
  4. 6. eight plus three