问题
填空题
请用英文数字完成下列等式。
1. thirty-eleven＝ _________
2. twelve + eight＝ _________
3. sixteen-ten + seven＝ _________
4. nine + six-one＝ _________
5. eighteen-five + one＝ _________
6. seven + three + twenty＝ _________
答案
1. nineteen 2. twenty 3. thirteen 4. fourteen 5. fourteen 6. thirty