1. twenty   kyuujuu, kyūjū   nijuu, nijū   gojuu, gojū   ni   Hint Half-n-half Clue   2. five   rei, zero   san   go   sen   Half-n-half Clue   3. seven   shichi , nana   juuichi, jūichi   ni   hyakuman   Half-n-half Clue   4. seventy   shichijuu, shichijū, nanajuu, nanajū   nijuu, nijū   ichi   shichi , nana   Half-n-half Clue   5. fifty   juuhachi, jūhachi   gojuu, gojū   rei, zero   juuku, jūku, juukyuu, jūkyū   Half-n-half Clue   6. thousand   sen   juuroku, yūroku   ni   hyaku   Half-n-half Clue   7. eighty   shichi , nana   juushi, jūshi, juuyon, jūyon   roku   hachijuu, hachijū   Half-n-half Clue