| Category | Format | Size |
|---|---|---|
| People's Education Press fourth grade mathematics volume 2 | pptx | 6 MB |
"Brackets" Four Arithmetic Operations PPT Courseware
Description
"Brackets" Four Arithmetic Operations PPT Courseware
1. Review old knowledge
Question: What kinds of operations have we learned so far?
The four operations of addition, subtraction, multiplication, and division we have learned are collectively called the four arithmetic operations.
2. Feel the effect of brackets
(1) Feel the effect of parentheses
Question: 1. Tell me what is the order of operations for this question.
2. If it becomes 96÷(12+4)×2, what is the order of operations?
3. Let’s talk about the order of operations first, and then calculate.
(2) Feel the effect of brackets
Questions: 1. If square brackets are added to 96÷(12+4)×2, do you know what the order of operations should be?
2. Let’s talk about the order of operations first, and then calculate.
3. There are small brackets and square brackets in the calculation. In what order should it be calculated?
In a calculation, there are both parentheses and square brackets. The equation inside the parentheses must be calculated first, and then the equation inside the square brackets.
3. Consolidate new knowledge
1. First talk about the order of operations of the following questions, and then calculate.
2. Did you know?
Question: There are parentheses and square brackets in the calculation. In what order should it be calculated?
4. Assign homework
Homework: Exercise 3 on page 11, Questions 1 and 3.
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"Four Arithmetic Operations" Flash animation courseware:
"Four Arithmetic Operations" Flash animation courseware This courseware helps students learn the knowledge points of the four arithmetic operations in the form of exercises and summarizes the knowledge points of this lesson. It is a good courseware for consolidating knowledge points and reviewing the course. Keywords: Four arithmetic operations animation courseware,...
"Exercise Questions" Four Arithmetic Operations Flash Animation Courseware 5:
"Exercise Questions" Four Arithmetic Operations Flash Animation Courseware 5 This courseware helps students learn the knowledge points of the four arithmetic operations in the form of exercises and summarizes the knowledge points of this lesson. It is a good courseware for consolidating knowledge points and reviewing the course. Keywords: Four arithmetic operations animation..
"Exercise Questions" Four Arithmetic Operations Flash Animation Courseware 4:
"Exercise Questions" Four Arithmetic Operations Flash Animation Courseware 4 This courseware helps students learn the knowledge points of the four arithmetic operations in the form of exercises and summarizes the knowledge points of this lesson. It is a good courseware for consolidating knowledge points and reviewing the course. Keywords: Four arithmetic operations animation..
File Info
Update Time: 2024-06-27
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