Numbers 0-10

12345678
Across
  1. 1. after number five
  2. 3. 29 - 20
  3. 4. before number 5
  4. 5. after number nine
  5. 6. the 1st
  6. 7. 4 + 4
Down
  1. 1. 9 - 2
  2. 2. nothing left
  3. 4. 4 + 1
  4. 5. one + two
  5. 8. after number 1