"Two digits minus one digit (without abdication), whole tens" PPT courseware for 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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"Two digits minus one digit (without abdication), whole tens" PPT courseware for addition and subtraction within 100
1. Review old knowledge
Are there any similarities in the calculations between these two sets of questions?
All numbers in the same digit are added directly.
Oral calculation.
35＋4＝ 35＋4＝ 5＋21＝
35＋40＝ 42＋30＝ 50＋21＝
2. Explore new knowledge
(1) How many storybooks are left? 35-2＝
(2) How many comic books are left? 35-20=
3. Application of knowledge
Let's give peaches to the little animals according to their house numbers.
See which monkey the peach belongs to.
From the 68 boxes picked in total, the remaining 5 boxes were taken away.
4. Assign homework
Homework: Questions 1 and 2 of "Do it" on page 69. Exercise 16 on page 71, questions 1 and 2.
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For more information about the PPT courseware "Addition and subtraction of two-digit numbers within 100 and subtraction of one-digit whole tens", please click the Addition and subtraction of two-digit numbers within 100 ppt subtraction of one-digit whole tens ppt tag.
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