"Send a Book" Understanding Decimals PPT Download

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"Send a Book" Understanding Decimals PPT Download

Part One: Review Import

1. Fill it out.

150 cents = () yuan 756 cents = () yuan

15.0 yuan = () corner

2. Vertical calculation.

15.6＋13.2＝

78.9-23.6＝

Sending a book PPT, part 2: exploring new knowledge

The postage charges are 1.6 yuan and 12.8 yuan respectively.

1. What mathematical information did you get from the picture?

The postage charges are 1.6 yuan and 12.8 yuan respectively.

2. What kind of math questions can you ask?

The postage is 1.6 yuan and 12.8 yuan respectively. How much does it cost in total?

3. How to list the formula?

1.6＋12.8=

4. Approximately how much money will Miaoxiang give to my uncle?

What should you pay attention to when adding vertical decimals with carry?

When calculating decimal carry addition, pay attention to the decimal points to be aligned, the same digits to be aligned, and don't forget to add the carry 1 when carrying.

How to convert integers to decimals?

15＝15.0

Problem-solving ideas: Align the decimal points, align the same digits, 0-4 is not enough to subtract, borrow one from the previous digit, 10-4=6, the decimal point falls, 5-1=4, 4-4=0, so 15-14.4= 0.6 yuan

What should we pay attention to when subtracting decimals?

When doing vertical subtraction of decimals, we should pay attention to aligning the decimal points, aligning the same digits, subtracting 1 from the subtraction, and don't forget to subtract.

Send a book PPT, the third part: Consolidation exercises

(1) I want to buy these two books. Is 35 yuan enough?

(2) Calculate, how many yuan is actually needed?

Qiqi wants to buy these two books, 35 yuan is not enough

21.8+14.5=36.3 yuan

Keywords: Beijing Normal University version third grade mathematics PPT courseware free download, send books PPT download, understanding of decimals PPT download, .PPT format;

For more information about the "Understanding Decimals and Sending Books" PPT courseware, please click on the "Understanding Decimals PPT and Sending Books" PPT tab.

"Send a Book" PPT on understanding decimals:

"Send a Book" Understanding Decimals PPT Part One: Introduction of New Knowledge Do the math. 7.8＋2.1= 12.5-11.3= Guess how much it costs? Do the math, how much does it cost to have a wonderful idea? Use the further method to regard 12.8 yuan as 13 yuan, 1.6 yuan as 2 yuan, 13...

"Send a Book" PPT courseware on understanding decimals:

"Send a Book" PPT courseware on understanding decimals. The postage is 1.6 yuan and 12.8 yuan respectively. Do the math, how much does Miaoxiang have to pay in total? 1.6 + 12.8 = 14.4 (yuan) Practice 1.⑴ Is 35 yuan enough for Qiqisi to buy these two books? ⑵ Calculate how much yuan is actually needed...

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Update Time: 2024-10-16

This template belongs to Mathematics courseware Beijing Normal University Edition Third Grade Mathematics Volume 1 industry PPT template

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