As the core course of basic education, mathematics is closely related to children's thinking development. Kalinin, a Soviet educator, said: "Mathematics is the gymnastics of thinking." Mathematical knowledge is a kind of knowledge with strict logic. The characteristics of mathematical knowledge itself are conducive to training children's thinking and developing their intelligence. The following is the relevant information of "Comprehensive Math Exercises in the Second Volume of Grade Two in Primary School (Three Articles)", hoping to help you.

Mathematics comprehensive exercises in the second volume of the second grade of primary school.

1. Fill in the blanks with 1. () One hundred is a thousand, and ten thousand has a thousand.

2. 1 km = () meters, 1 min = () seconds, 4000 cm = () decimeter.

3, choose the right unit to fill in ();

The height of a child is 150 (), the height of a desk is 7 (), and the class time is 40 (). The length of a railway is 1000 ().

4.3084 consists of () thousands, () tens and () ones.

5. Starting from the right, the third position is () and the fourth position is ().

6. A five-digit number, its digits are () digits, and the hundred digits are () digits.

7. Fill in > or < in ○. 1003○9993968○400 1900g○2kg

8, 7903, 7930, 9730 and 973 are arranged in order from small to large:

()