Sophia's By the Numbers Puzzle

12345678910111213
Across
  1. 2. US states (or 100 divided by 2)
  2. 6. Month's worth (or rhymes with dirty)
  3. 8. Stoplight (or tricycle)
  4. 9. Tic-Tac-Toe (or cats' lives)
  5. 10. Olympic rings (or pentagon)
  6. 12. Bicycle (or twins)
  7. 13. Football team (or pipers piping)
Down
  1. 1. Guitar (or insect legs)
  2. 3. October 23, 2023 (or baker's dozen)
  3. 4. Octopus (or octave)
  4. 5. Continents (or days)
  5. 6. Egg carton (or roses)
  6. 7. Bowling (or Commandments)
  7. 10. Clover (or quarters)
  8. 11. 3+8-6+9-13