numbers

12345678910111213
Across
  1. 3. the age you can drink legally
  2. 4. in some places if you are this age you are an adult
  3. 9. one year from twenty, one year ahead of 18
  4. 10. my age
  5. 12. Lucas gram
  6. 13. 13+2
Down
  1. 1. card game
  2. 2. 4 times 10-3+3 divide by 10 times 10 +2 +1
  3. 5. 5 times 10-10+10+21+41-72
  4. 6. the sixth and tenth number of pi
  5. 7. the first number of pi
  6. 8. 0-10+13-3+55-66+11-1
  7. 9. 15+1
  8. 11. the average age of everyone in the class