"Continuous Addition and Continuous Subtraction" PPT on addition and subtraction within 100 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
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Authoritative PPT Summary
"Continuous Addition and Continuous Subtraction" PPT on addition and subtraction within 100
Part One: [Learning Objectives]
1. Consolidate the calculation of addition and subtraction within 100 to improve calculation ability; learn to use vertical calculations for continuous addition and subtraction.
2. Experience the process of exploring and understanding the arithmetic of continuous addition and subtraction, and improve your logical thinking ability through observation and comparison.
3. Learn proactively, experience the fun of learning, and enhance your confidence in learning.
[Learning is important and difficult]
1. Master the method of calculating continuous addition and subtraction using vertical expression.
2. Able to correctly calculate continuous addition and continuous subtraction formulas.
PPT on continuous addition and subtraction, part 2: introduction of new lesson
What are the students doing?
Explore new knowledge
How many were picked in total?
First, count the pumpkins picked by the first group and the second group:
28＋34＝
Plus the pumpkins picked by the third group:
62＋22＝
Oral answer: A total of 84 pumpkins were picked.
1. Use vertical expressions to calculate the following questions.
58+15+19= 34+26+15=
2. Use vertical expressions to calculate the following questions.
34+22+16= 56+14+28=
PPT of continuous addition and continuous subtraction, the third part: Consolidation and improvement
54+20+16= 46+25+17=
7+59+20= 90 - 58 - 30 =
75 - 28 - 19 = 72 - (6+44) =
PPT on continuous addition and subtraction, part 4 content: Class summary
Continuous additions Continuous subtractions
28＋34＋22＝84
84-40-26＝18
PPT on continuous addition and subtraction, part 5: homework
1. Select from the after-class exercises;
2. Complete the exercises in this lesson in the exercise book.
Keywords: Free download of PPT courseware for second grade mathematics from the People's Education Press, PPT download of continuous addition and subtraction, PPT download of addition and subtraction within 100, .PPT format;
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