Numbers

123456789
Across
  1. 3. 9-4=?
  2. 6. 11
  3. 7. Today is April...?
  4. 9. 9-6=?
Down
  1. 1. How old is the teacher?
  2. 2. 12
  3. 4. 4x2=?
  4. 5. 50 =50=?
  5. 8. Teacher's birthday is on April...?