"Addition with Carry" PPT download of addition and subtraction within 100

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"Addition with Carry" PPT download of addition and subtraction within 100

Part One: Review Import

See who can calculate correctly and quickly.

8＋5＝ 9＋6＝ 7＋5＝ 3＋3＋1＝

5＋6＝ 7＋8＝ 8＋8＝ 4＋2＋1＝

Carry plus PPT, the second part: exploring new knowledge

How many students are there in Class 2(1) and Class 2(3)?

How to calculate in writing?

35+37=72 (people)

The ones digit adds up to ten, and advances 1 to the tens digit.

Carry plus PPT, the third part: knowledge expansion

Can these two classes share a car?

How many people are there in the two classes?

36+35=

First use a small stick to swing it, use a counter to dial it, and then think about how to calculate it in vertical form.

Add 6 to 5 in the ones place to get 11, advance 1 to the tens place, and write 1 in the ones place.

Carry plus PPT, part 4: Apply what you have learned

1. Do the math.

What should you pay attention to when doing addition calculations?

pen arithmetic addition

Same digit alignment;

Add up from ones place;

The individual positions add up to ten,

Advance 1 to the tens place.

2. Take a guess.

26＋48＝☆4 39＋14＝☆3 60＋39＝☆9

37＋12＝☆9 54＋16＝☆0 45＋8＝☆3

3. Fill in the numbers on the flowers.

Carry plus PPT, Part 5: Summary

What knowledge have you learned?

Addition in pen arithmetic starts from the ones digit.

Calculation method of adding two digits to two digits (carry addition):

①Align with the same digits;

②Add from the ones digit;

③Add 1 to the tens digit when the ones digit adds up to 10.

Keywords: Free download of PPT courseware for second grade mathematics from People's Education Press, download of carry and addition PPT, download of addition and subtraction within 100 PPT, .PPT format;

For more information about the PPT courseware "Addition and Subtraction within 100, Carry and Add", please click on the Addition and Subtraction within 100 PPT Carry and Add PPT tag.

"Addition with Carry" PPT courseware download of addition and subtraction within 100:

"Carry Addition" PPT courseware download for addition and subtraction within 100 Part One: Objectives of this section 01 Preliminarily understand and master the calculation method of two-digit carry addition in written arithmetic, and be able to correctly calculate two-digit carry addition. 02 Initial development of analytical and generalization abilities. pass..

"Addition with Carry" PPT teaching courseware for addition and subtraction within 100:

"Carry Addition" PPT teaching courseware for addition and subtraction within 100. Part 1: Introduction of the topic 1. Calculate orally and talk about your own algorithm. 5+34= 63+7= 9+84= 38+50= 2. Calculate using the Jian formula. 32+6= 5+43= 24+61= 32+37= ... ... ... ..

"Addition with Carry" PPT on addition and subtraction within 100:

"Addition with Carry" PPT on addition and subtraction within 100 Part 1: Exploring new knowledge How many students are there in Class 2 (1) and Class 2 (3)? Understand the meaning of the question: There are 35 people in Class 2 (1) and 37 people in Class 2 (3). Calculate the total number of people in the two classes using addition. The formula is...

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Update Time: 2024-09-05

This template belongs to Mathematics courseware People's Education Press Second Grade Mathematics Volume 1 industry PPT template

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