"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware

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"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware

Think about it:

What are the similarities between adding and subtracting decimals and adding and subtracting integers? What should you pay attention to?

When calculating the addition and subtraction of decimals and the addition and subtraction of integers, numbers in the same digits are added and subtracted, starting from the lowest digit, and the same method of "advancing a full ten to one" or "returning one to make a ten" is only a decimal. Pay attention to aligning the decimal points when doing addition and subtraction.

Let’s see who can calculate right and fast

3.7+4.2= 4.5+2.3=

2.7-1.5= 8.4-7.5=

2.5-0.8= 6.2+3.9=

1.1-0.3= 1.4+0.8=

Do the math

0.6+0.9= 0.5+0.3=

1.9-1.4= 7.8-1.1=

1.1+2.8= 2.6-0.8=

3.9+2.5= 6.2－3.9=

I want to get off at Guangming Street Station. How much is the ticket?

Distance from Children's Paradise to Guangming Street:

2 × 8 = 16 (km)

16-10 =6 (km)

How much more will it cost for 3 more 2 kilometers?

0.2 + 0.2 + 0.2 = 0.6 (yuan)

1 + 0.6 = 1.6 (yuan)

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For more information about the PPT courseware "Preliminary Understanding of Decimals and Simple Addition and Subtraction of Decimals", please click the "Preliminary Understanding of Decimals ppt Simple Addition and Subtraction of Decimals" ppt tag.

"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware 3:

"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware 3 Think about it: What are the similarities between the calculation of addition and subtraction of decimals and the calculation of addition and subtraction of integers? What should you pay attention to? When calculating addition and subtraction of decimals and addition and subtraction of integers, numbers in the same digits are...

"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware 2:

"Simple Addition and Subtraction of Decimals" Preliminary Understanding of Decimals PPT Courseware 2 Use vertical calculation: 32+54= 68-27= 48+9= 25-17= 1. Align the same digits and add and subtract starting from the ones digit. 2. Which one adds up to ten, add 1 to the previous one, and which one does not add up enough, add 1 to the previous one..

"Simple Addition and Subtraction of Decimals" Preliminary understanding of decimals Flash animation courseware:

"Simple Addition and Subtraction of Decimals" Flash animation courseware for preliminary understanding of decimals. This courseware helps students learn the knowledge points of simple addition and subtraction of decimals in the preliminary understanding of decimals in the form of exercises. It summarizes the knowledge points of this lesson. It is to consolidate knowledge points..

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Update Time: 2024-10-03

This template belongs to Mathematics courseware Jiangsu Education Edition Third Grade Mathematics Volume 2 industry PPT template

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