"Using Estimation to Solve Problems" PPT Courseware on Understanding Numbers Within Ten Thousands

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People's Education Press Second Grade Mathematics Volume 2	pptx	6 MB

"Using Estimation to Solve Problems" PPT Courseware on Understanding Numbers Within Ten Thousands

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Upload Time: 2024-11-18

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Description

"Using Estimation to Solve Problems" PPT Courseware on Understanding Numbers Within Ten Thousands

1. Review introduction and reveal topics

1. Oral calculation.

300＋200＝ 700－300＝ 900＋1000＝

800－500＝ 600＋300＝ 1500－700＝

100＋900＝ 700＋900＝ 6600－600＝

2. Fill it out.

(1) My mother bought a computer for 4,995 yuan, which is about ( ) yuan.

(2) Xinxin Primary School has 608 people, about ( ) people.

(3) There are 1298 fruit trees in the orchard, about ( ) trees.

2. Explore new knowledge

I spent 500 yuan to buy a phone that cost more than 300 yuan, and I had less than 200 yuan left, which was definitely not enough to buy a hair dryer.

You don’t have to calculate the exact amount, you can think of it this way: the phone costs more than 300 yuan, and the hair dryer costs more than 200 yuan. 300+200=500, bringing 500 yuan is definitely not enough.

3. Application of knowledge

1. The Chengguan Town auditorium has 3,000 seats, and the three primary schools in Chengguan Town each have more than 800 students. If students from these three primary schools come to participate in the event at the same time, can they sit down?

2. Continuously.

(1) "Science World" is now on discount, and the current price is 212 yuan. After the discount, "Science World" is about ( ) yuan cheaper.

(2) If I buy these three sets of books at the original price, is it enough to bring 600 yuan?

(3) What other mathematical questions can you ask? Will you solve it?

4. Classwork

Homework: Exercise 19 on page 98, question 5. Exercise 19 on page 99, questions 7 and 8.

Keywords: Courseware for understanding numbers within ten thousand, using estimation to solve problems, PPT courseware for the second volume of the second grade of the New People's Education Press, second grade mathematics slide courseware download, downloading PPT courseware for understanding numbers within ten thousand, using estimation to solve problems PPT Courseware download, .ppt format

For more information about the PPT courseware "Understanding Numbers Within Ten Thousands and Using Estimates to Solve Problems", please click on the PPT tag "Understanding Numbers Within Ten Thousands and Solving Problems Using Estimates" PPT tag.

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Update Time: 2024-11-18

This template belongs to Mathematics courseware People's Education Press Second Grade Mathematics Volume 2 industry PPT template

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"Using Estimation to Solve Problems" PPT Courseware on Understanding Numbers Within Ten Thousands