Number names

12345678
Across
  1. 3. one ten and three ones
  2. 4. after 20
  3. 5. between 53 & 55
  4. 7. 18-1=
Down
  1. 1. before 15
  2. 2. before 36
  3. 6. smallest two digit number is
  4. 7. 87_22=
  5. 8. how many tens are there in 89