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

Description

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

Part One: 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). To find the total number of people in the two classes, use addition and the formula is 35+37.

Solution exploration

Method 1: Oral calculation

70 + 2 = 72

Method 2: Vertical calculation

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

standard answer

35+37=72

Carry plus PPT, part 2: Consolidation exercises

56+37= 46+24= 29+5=

5 6 4 6 2 9

+ 3 7 + 2 4 + 5

( ) ( ) ( )

Carry plus PPT, the third part of the content: Class summary

The calculation method of adding two digits to two digits (adding with carry): ① align the same digits; ② add from the ones digit; ③ add 1 to the tens digit when the ones digit is added to 10.

Carry plus PPT, part 4: after-class exercises

1. Use vertical calculation.

65+18 = 26+35= 27+37=

2. Mathematics Clinic.

3. How many radishes did the two little rabbits pull out in total?

28+16=44 (pieces)

Answer: The two little rabbits pulled 44 radishes in total.

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 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...

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Update Time: 2024-11-22

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

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