"Visiting Beijing" PPT courseware 4

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"Visiting Beijing" PPT courseware 4

Observe the pictures. Can you ask written questions?

Approximately how many people can sit in the restaurant on the first floor? What about the second floor?

The first floor can seat about 600 people

The second floor can seat about 500 people

What is the difference between the data in the two tables?

The data in the first table is accurate data.

The data in the second table are approximate and inaccurate.

State the approximate number of each of the following numbers

980 is approximately ( ); 102 is approximately ( );

999 is approximately ( ); 2103 is approximately ( );

4995 is approximately ( ); 7001 is approximately ( );

Compare.

161＞56 10000＞9999

656＜1000 1600＞560

1002＞987 206＜8060

There are 895 story books and 806 science and technology books. Which type has the most volumes?

895>806

If the numbers in the hundreds place are the same, compare the numbers in the tens place.

9>0, so 895 is larger than 806.

To compare two numbers with the same digits, start the comparison from the first digit from the left. If the number in the first digit is the same, compare the number in the second digit... until the size is compared.

How to compare numbers within 10,000

First, compare the digits of two numbers. The number with more digits is larger.

If the digits are the same, start from the highest digit and the one with the higher digit will be larger. If the numbers in the highest digits are the same, the next digit is used, and so on.

3. Independent practice

1. Compare.

2. Think about it, one after another.

3. Use the following three pictures to arrange different three-digit numbers and arrange them in order from small to large.

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Update Time: 2024-09-09

This template belongs to Mathematics courseware Qingdao Edition Second Grade Mathematics Volume 2 industry PPT template

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