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!["Continuous Addition and Consecutive Subtraction" PPT courseware on addition and subtraction within 100](https://font2020.oss-cn-beijing.aliyuncs.com/ppt1/efaba7c3528aacebd2fb136e1bafcd59.jpg)
Category | Format | Size |
---|---|---|
Jiangsu Education Edition Second Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Continuous Addition and Consecutive Subtraction" PPT courseware on addition and subtraction within 100
1. Column vertical calculation
What should you pay attention to when doing addition and subtraction in writing?
Same digit ( )
When the unit digits add up to ten, go to ( )
The single digit is not reduced enough, ( )
2. Calculate the following questions orally and tell us in what order you calculated them.
10+10+10= 6+4+5=
60-20-30= 16-8-4=
19+27+26=□( )
Thinking: What to count first when making vertical formulas? What else?
After completing it independently, the group discussed how else to write the vertical style?
Come and give it a try:
90-25-28=( )
Requirement: Make your own vertical calculations. Can you write two vertical forms together?
Keywords: Addition and subtraction within 100 courseware, continuous addition and continuous subtraction courseware, Jiangsu Education Edition second grade mathematics PPT courseware download, second grade mathematics slide courseware download, addition and subtraction within 100 PPT courseware download, continuous addition and continuous subtraction PPT courseware download, .PPT format;
For more information about the PPT courseware "Addition and subtraction within 100, continuous addition and subtraction", please click the Addition and subtraction within 100 ppt, continuous addition and subtraction ppt tag.
"Continuous addition, continuous subtraction and mixed addition and subtraction" Understanding of numbers within 10 and addition and subtraction PPT courseware 3:
"Continuous addition, continuous subtraction and mixed addition and subtraction" Understanding of numbers within 10 and addition and subtraction PPT courseware 3 Learning objectives: 1. Explain the meaning of continuous addition and continuous subtraction through situational teaching. 2. Through operation, you can understand the calculation methods of continuous addition and continuous subtraction. 3. Cultivate diversity of thought. Let's see who does it...
"Continuous addition, continuous subtraction and mixed addition and subtraction" Understanding of numbers within 10 and addition and subtraction PPT courseware 2:
"Continuous addition, continuous subtraction and mixed addition and subtraction" PPT courseware on understanding and addition and subtraction of numbers within 10 2 3 + 4 + 1 = 7 + 2 + 1 = 2 + 2 + 4 = 6 + 4 + 0 = 4 + 3 + 2 = 5 + 0 + 3 = ... ... ... How many ways can you think of to take out 8 cents? ..
"Continuous addition, continuous subtraction and mixed addition and subtraction" PPT courseware for understanding numbers within 10 and addition and subtraction:
"Continuous addition, continuous subtraction and mixed addition and subtraction" PPT courseware for understanding numbers within 10 and addition and subtraction. Today, I not only reviewed continuous addition, continuous subtraction, but also reviewed mixed addition and subtraction. Their order of operations are calculated from left to right. See who can do it faster! 10-4+2= 4+2+1=..
File Info
Update Time: 2024-09-09
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![《连加连减》100以内的加法和减法PPT课件
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