---How many balls do you have? (    )
---I have _______.
 

A．two

B．five

找出排放错误的字母，并且按正确形式写出单词。
(1) l k a t   
(2) r a e d    
(3) o o b k   
(4) a h p p y    
(5) t e w n y t

算一算
1. nine thousand + one hundred = ___________
2. four thousand one hundred and eighty-six + thirty –seven = ___________
3. six hundred and forty-five + twenty-four = ___________
4. two thousand + three hundred and seventy-six = ___________

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 ___________________________________________________________________
_____________________________________________________________________________________________________________________________________________________________.

做一做下面的算术题
1. eighteen - five="seventeen" - ________
2. thirteen + seven - seventeen=________
3. four + twelve + two=________
4. eight + six + three=________