按要求写数。（1）既是质数又是奇数的数是（）。（2）既是质_爱下问搜题

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问题填空题

按要求写数。

（1）既是质数又是奇数的数是（）。

（2）既是质数又是偶数的数是（）。

（3）既是合数又是奇数的数是（）。

（4）既是合数又是偶数的数是（）。

（5）在下面的“□”里填上一个适当的数字，使组成的这个数最小。

①既是2的倍数，又是3的倍数。47□2

②既有因数3，又有因数5。4□1□

③既是2的倍数，又是5的倍数。5□9□

④同时是2、3、5的倍数。7□□

答案

（1）3（答案不唯一）

（2）2

（3）9（答案不唯一）

（4）4（答案不唯一）

（5）①2；②0，5；③0，0；④2，0

阅读理解

Reading comprehension. (阅读短文 ,判断正“√“×” 。 )

Grandma Wang is very old now. She has no child. She lives with her pet cat. Last Sunday some children visited Grandma Wang. They wanted to do something for her. Tom cleaned the windows. Amy washed

the clothes. Lingling made a big cake. They worked very hard. At lunch time,they were very tired and

very hungry. They ate the cake. Grandma Wang was very happy.

( )1. Grandma Wang has three children.

( ) 2. Last Sunday, some children visited Grandma Wang.

( )3. Amy cleaned the windows.

( )4. They ate the cake for lunch.

( )5. Lingling washed the clothes.

填空题

抓棉小车回转一周，打手下降一次，故打手下降是（）。