A. two              
B. one              
C. three

1.      2.     3.     4.     5.
           (     )                        (     )                       (     )                       (     )                        (     )
            nine                         three                         six                          four                        seven

A. Two yuan.     
B. Three yuan.

eleven         eighteen          nineteen           fourteen            twelve             sixteen
(     )            (     )              (     )               (     )               (     )               (     )
 14                 16                  18                   19                   12                   11

A. one
B. two
C. three

A. Six
B. Twelve
C. Ten

A. ten               
B. twenty             
C. fifteen

1. five + six =                  
2. fifteen -         = one   
3. four × five =               
4. sixteen + fourteen =                  
5. three +              = twenty-nine     
6.              ÷ two = eight

1. 16 + 20 = ?
    What's ____________ and ____________?  It's ____________.
2. 65 + 25 = ?
    What's ____________ and ____________?  It's ____________.
3. 35 －6 = ?
    What's ____________ minus ____________?  It's ____________.
4. 7 × 9 = ?
    What's ____________ times ____________?  It's ____________.
5. 81 ÷ 3 = ?
    What's ____________ divided by ____________?  It's ____________.

1. There are _______________ letters in English alphabet (字母表).
2. There are _______________ days in a week.
3. There are _______________ hours in a day.
4. There are _______________ days in a year.
5. Thursday is the _______________ day of the week.
6. There are _______________ days in January.
7. There are _______________ months in a year.
8. _______________ is Christmas Day.
9. There are _______________ seasons in a year.
10. There are _______________ days in February 2008.