"Addition without Carry" PPT download of addition and subtraction within 100

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"Addition without Carry" PPT download of addition and subtraction within 100

Part One: Exploring New Knowledge

What math questions can you ask?

How to list the formula?

35＋2＝

37＋2＝

35＋32＝

35＋37＝

How many students are there in Class 2 (1) and the leading teacher of this class?

Adding PPT without carrying, part 2: adding two digits to one digit (without carrying)

How many students are there in Class 2 (1) and the leading teacher of this class?

35+2=37 (people)

First calculate 5+2=7,

Then calculate 30+7=37.

Vertical column:

Tenth place:

3+0=3

Enter 3 in the tens place.

Units place:

5+2=7

Enter 7 in the ones place.

Note: The ones digit is aligned with the ones digit.

Adding PPT without carrying, the third part: adding two digits to two digits (without carrying)

When writing the vertical form, where do you add it from?

35+32=67 (people)

The same digits must be aligned.

Add up from ones digit.

What should we pay attention to when calculating vertical columns?

1. Align the ones digit with the ones digit, and align the tens digit with the tens digit.

2. Start adding from the ones position.

3. The number that adds up to the ones digit is written under the ones digit, and the number that adds up to the tens digit is written under the tens digit.

Add PPT without carrying, part 4: Summary after class

1. When adding a two-digit number to a one-digit number (adding without carry), the same digits must be aligned, starting from the ones digit, and adding the numbers in the ones digit, the number obtained by adding the numbers in the ones digit is written in the ones digit of the result, and the tens digit Write down the number above and write it in the tens place of the number.

2. When adding a two-digit number to a two-digit number (adding without carry), the same digits must be aligned, starting from the ones digit, and adding the numbers in the ones digit, the number obtained by adding the numbers in the ones digit is written in the ones digit of the result, and the tens digit is The number obtained by adding the numbers above is written in the tens place of the resultant number.

Keywords: Free download of PPT courseware for second grade mathematics from the People's Education Press, PPT download of addition without carry, PPT download of addition and subtraction within 100, .PPT format;

For more information about the PPT courseware "Addition and subtraction within 100 without carry", please click on the Addition and subtraction within 100 PPT without carry PPT tag.

"Addition without Carry" PPT on addition and subtraction within 100:

"Addition without Carry" PPT on addition and subtraction within 100 Part 1: Objective of this section 01 Under specific circumstances, further understand the meaning of addition and understand the principle that only numbers in the same digit can be added. 02 Explore and master the process of adding two-digit numbers and adding two-digit numbers..

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Update Time: 2024-10-31

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

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