看图, 补全下列句子。
1. I have ________ erasers.

2. I collect ________. I have ________.

3. —You have so many ________.
—I have ________.

4. —What ________?
—I collect ________. I have ________.

5. —You have so many ________.
—I collect ________.

连线
(1) twenty   

A．九 (2) nine

B．三 (3) three

C．二十 (4) eight

D．一

(5) one    E. 八

按要求写单词。
1. first (基数词)--__________  2.two (序数词)---______________
3. cake (复数形式)---________  4. call (过去式)---___________

假如你家有一个农场，统计一下农场里动物的数量：
10只母鸡， 13头猪， 12只鸭子， 14只绵羊， 10匹马， 15头奶牛
Now we have ___________________________________________________________________
_____________________________________________________________________________________________________________________________________________________________.

算一算，连一连。
one + two = one
two × two= two
one + four = three
three – one =   four
five – one =     five