1．例：four(四)＋teen＝fourteen(十四)
(1) six(六)＋__________ ＝ __________ ( )
(2) seven(七)＋__________ ＝ __________ ( )
(3) nine(九)＋ __________ ＝ __________ ( )
2．例：seven(七)＋ty＝seventy (七十)
(1) six(六)＋__________ ＝ __________ ( )
(2) nine(九)＋ __________ ＝ __________ ( )
搜索
