Place value

12345678
Across
  1. 2. Five thousand four hundred twenty nine
  2. 4. 8 thousands, 9 hundreds and 4 ones
  3. 5. Smallest number using digits 9,4,3 and 1
  4. 8. Number before 3457
Down
  1. 1. 1000+900+80+9
  2. 3. place value of 7 in 7364
  3. 6. The smallest number among 3045, 3945 and 3415
  4. 7. 1000 more than 7639