Math Crossword

12345678910111213
Across
  1. 2. 3.21x10²
  2. 3. 8.56x10⁵
  3. 5. Population of Earth
  4. 6. 9x10²
  5. 7. Population of Canada
  6. 10. Population of Peterborough
  7. 11. 223x10²
  8. 12. 54x10⁵
  9. 13. 3.2x10³
Down
  1. 1. 7x10⁶
  2. 2. 3x10⁵
  3. 4. 89x10⁵
  4. 8. 2x10³
  5. 9. 10¹
  6. 11. 2.3x10⁴