"Comparison of Sizes of Numbers Within Ten Thousands" PPT Courseware for Large Numbers in Life

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"Comparison of Sizes of Numbers Within Ten Thousands" PPT Courseware for Large Numbers in Life

Comparison of size.

799○800 802○820

632○623 534○529

485○490 705○650

Do you know which five mountains in our country are collectively called the "Five Mountains"?

Dongyue Taishan

Xiyue Huashan

Nanyue Hengshan

Beiyue Hengshan

Zhongyue Songshan Mountain

Read the heights of five famous mountains in my country and arrange them in order from high to low.

Hengshan 2016 meters

Huashan 2155 meters

Songshan 1492 meters

Mount Tai 1533 meters

Hengshan 1290 meters

2016 read as: two thousand and sixteen

2155 pronounced as: two thousand one hundred and fifty-five

1492 Read: one thousand four hundred and ninety-two

1533 Read: one thousand five hundred and thirty-three

1290 pronounced as: one thousand two hundred and ninety

2016, 2155, 1492, 1533 and 1290 are all four-digit numbers with the same number of digits, and the highest digits are all thousands.

① Compare these five numbers in thousands of digits and initially determine the size of each number. It turns out that 2016 and 2155 are relatively large, while 1492, 1533 and 1290 are relatively small.

② Compare the numbers in hundreds of places in groups to determine the size of each number.

Between 2016 and 2155, the number in the hundreds place of 2016 is 0, and the number in the hundreds place of 2155 is 1. Because 1>0, so 2155>2016. Among 1492, 1533 and 1290, the number in the hundreds place of 1492 is 4, the number in the hundreds place of 1533 is 5, and the number in the hundreds place of 1290 is 2. Because 5>4>2, so 1533>1492>1290.

How to compare numbers within 10,000

The number of digits is different: the number with more digits is larger

The number of digits is the same

Comparing thousands digits: The number with the larger number in the thousands digit is larger.

The numbers in the thousands place are the same → compare in the hundreds place: the number with a larger number in the hundreds place is larger.

The numbers in the hundreds digit are the same → compare the tens digit: the number with a larger number in the tens digit is larger.

Class summary

1. Fill in ＞ or ＜ in the circle below.

4372○4427 3001○2999

7158○7156

2. Arrange the prices of the furniture below in order from high to low.

3. Arrange the following numbers in order from smallest to largest.

(1) 941 893 1001 839 914

(2) 3005 3050 3049 3500 3590

4. Use the number cards below to form different four-digit numbers, and then arrange them in order from largest to smallest.

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"Comparison of Numbers Within Ten Thousands" PPT Courseware 1. When the digits are different, the number with more digits is larger. 2. When the digits are the same, start from the highest digit and compare one by one. The number with the larger number in the same digit is greater. Summary of methods: 1. When the digits are different,...

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Update Time: 2024-11-22

This template belongs to Mathematics courseware Hebei Education Edition Third Grade Mathematics Volume 1 industry PPT template

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