Across
- 2. Odd (4)
- 5. How long did it take to build the wall of China?(9)
- 8. Early version of Sudoku (11)
- 10. Who invented 0? (5)
Down
- 1. Who was the first sovereign of china? (13)
- 3. How long is the wall of china? (9)
- 4. how many maths schools were in the 13th century? (2)
- 6. Even (6)
- 7. Leonardo of Pisa other name (9)
- 9. 4 is what to the Chinese? (3)