Number Explosion

Edit Answers
123456789101112131415161718
Across
  1. 3. eight thousand, three hundred seventeen
  2. 5. 4057+82
  3. 7. 9000+600+50+4
  4. 9. 42968--36
  5. 13. 4057-82
  6. 14. round 4809 to the highest place
  7. 15. round 4298 to the highest place
  8. 16. 900000+60000+5000+400+80+6
  9. 17. six thousand, eight hundred twenty-nine
  10. 18. 64298+63
Down
  1. 1. 8968-403
  2. 2. round 89060 to the lowest place
  3. 4. seven thousand, four hundred eighty-two
  4. 6. four thousand, nine hundred twenty-six
  5. 8. round 4609 to the hundreds place
  6. 10. 9000000+600000+50000+4000+800+60+8
  7. 11. 90000+6000+500+40+8
  8. 12. 4289-893
  9. 14. 4206+893
  10. 16. 8968+403