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

Description

"Addition with Carry" 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 calculation, and be able to correctly calculate two-digit carry addition.

02 Initial development of analytical and generalization abilities. By placing wooden sticks, dialing calculators, etc., you can experience the fun of learning mathematics and develop a strong interest in mathematics.

03 During learning, feel the close connection between mathematics and life, and apply the knowledge learned to real life.

Carry plus PPT, the second part of the content: initial perception

What math questions can you ask?

How to list the formula?

35＋37＝

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

Delve deeper

How to calculate in writing?

35＋37＝_______

ten

3 5

+ 3 7

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

The same digits must be aligned and added starting from the ones digit.

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

Carry plus PPT, the third part: Contact life

(1) How much does it cost in total for Xiaohua to buy a toy car and a toy rocket?

14+27=41 (yuan)

(2) Xiaoling has 50 yuan, what other toys can she buy?

You can buy a toy airplane and a toy rocket.

You can buy a toy airplane and a toy car.

You can buy a toy ship and a toy car.

Carry plus PPT, Part 4: Consolidation Practice

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. Is the following calculation correct? Correct what is wrong.

The same digits must be aligned.

When the ones digit reaches ten, don’t forget to add 1 to the tens digit!

The 0 in the ones digit is used to occupy the place and must be written.

Carry plus PPT, Part 5: Summary of this section

01 When calculating addition in vertical form, the same digits must be aligned.

02 When calculating addition in vertical form, add from the ones digit.

03 When calculating addition in vertical form, the ones digit adds up to ten, and 1 is added to the tens digit.

Carry plus PPT, Part 6: Assign homework

Complete 2.1.2 Carry plus homework online.

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 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 download of addition and subtraction within 100:

"Addition with Carry" PPT download of addition and subtraction within 100 Part 1: Review introduction to 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, Part 2...

"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: 2024-10-01

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

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