"Addition and Subtraction of Whole Hundreds and Whole Thousands" PPT on Understanding Numbers Within Ten Thousands (Lesson 1)

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"Addition and Subtraction of Whole Hundreds and Whole Thousands" PPT on Understanding Numbers Within Ten Thousands (Lesson 1)

Part One: Learning Objectives

1. Enable students to flexibly choose appropriate methods to add and subtract hundreds and thousands.

2. Experience the formation process of calculation methods for addition and subtraction of whole hundreds and whole thousands, and experience the method of exploring problems.

3. Students feel that mathematics comes from life when solving problems, understand the role of mathematical calculations in life, and cultivate students' awareness of mathematical applications and ability to solve problems.

[Key Points] Master the methods of addition and subtraction of whole hundreds and whole thousands.

[Difficulty] Improve students’ ability to observe and solve problems.

PPT on addition and subtraction of hundreds and thousands, part 2: classroom analysis

What math questions can you ask?

How much did it cost to buy these two appliances in total?

How much more expensive is a refrigerator than a TV?

Can you solve the math problems posed?

Let's take a look at how these problems are solved.

Help grandpa calculate how much it cost to buy these two electrical appliances.

How to calculate it?

Try doing the math.

Calculate using addition.

1000 + 2000 = 3000 (yuan)

One thousand plus two thousand is three thousand, which is 3,000.

Any other ideas?

PPT on addition and subtraction of hundreds and thousands, part three: classroom exercises

1. Calculate.

200＋400＝ 3000＋6000＝

600－400＝ 9000－3000＝

70＋50＝800＋900＝

120－50＝1700－900＝

2. (1) 700+200= ( ), think ( ) hundred plus ( ) hundred is ( ) hundred.

(2) 1200-300= ( ), think ( ) one hundred minus ( ) one hundred is ( ) one hundred.

(3) 3000+600= ( ), think ( ) hundred plus ( ) hundred is ( ) hundred.

(4) 5000-700= ( ), think ( ) one hundred minus ( ) one hundred is ( ) one hundred.

3.700+800= 1500 (bag)

1500-1000= 500 (bag)

Can you ask and solve other math problems?

4. What math questions can you ask? Can you answer it?

How many meters further does a train travel per minute than a freight train?

1500-800=700 (meters)

Oral answer: A train travels 700 meters further per minute than a freight train. (The answer is not unique)

1000+2000=3000 2000-1000=1000

One thousand plus two thousand is three thousand, which is 3,000.

80+50=130 130-80=50 130-50=80

8 tens plus 5 tens is 13 tens, which is 130.

Keywords: Free download of PPT courseware for mathematics in the second volume of the second grade of the People's Education Press, PPT download of addition and subtraction of hundreds and thousands, PPT download of understanding of numbers within ten thousand, .PPT format;

For more information about the PPT courseware "Understanding Numbers Within Ten Thousands, Addition and Subtraction of Hundreds and Whole Thousands", please click on the PPT Tag of Understanding Numbers Within Ten Thousands, Addition and Subtraction of Whole Hundreds and Whole Thousands.

"Adding and Subtracting Whole Hundreds and Whole Thousands" PPT on understanding numbers within ten thousand (Lesson 2):

"Adding and Subtracting Whole Hundreds and Whole Thousands" PPT on Understanding Numbers Within Ten Thousands (Lesson 2) Part One: Learning Objectives 1. To enable students to initially learn the strategies for addition and subtraction estimation to solve problems based on specific situations. 2. Through communication on addition and subtraction of numbers within ten thousand, students can...

"Adding and Subtracting Whole Hundreds and Whole Thousands" PPT on understanding numbers within ten thousand:

"Adding and Subtracting Whole Hundreds and Whole Thousands" PPT on understanding numbers within ten thousand Part 1: Learning new knowledge How much does it cost to buy a computer and a refrigerator in total? Use addition calculation: 1000 + 2000 = 3000 (yuan). 1 thousand plus 2 thousand is 3 thousand, which is 3000. A refrigerator is better than a computer...

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Update Time: 2024-06-10

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

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