"Continuous Multiplication" PPT

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"Continuous Multiplication" PPT

Part One: Knowledge Review

We already know how to calculate the multiplication of two numbers. Do you know how to calculate the multiplication of three numbers? Discuss this with your peers.

For example, Xiwangzhuang had 24 fixed telephones in 2000. The number of fixed telephones in 2005 was 6 times that of 2000. How many fixed phones were there in Xiwangzhuang in 2010?

The number of fixed telephone lines in 2010 was twice that of 2005.

To find the number of landline telephones in 2010, what must be calculated first?

We need to first calculate the number of landline calls in 2005...

24×6=144 (part)

144×2 = 288 (parts)

You can list a continuous multiplication formula to calculate...

24×6×2

=144×2

=288 (Ministry)

Answer: Xiwangzhuang had 288 fixed phones in 2010.

Continuous PPT, the second part of the content: extracurricular development

(1) Each book is 4 yuan. I guess, 500 yuan is enough to buy 5 packs of books?

25×4×5=500 (yuan)

24<25

Answer: 500 yuan is enough to buy 5 packs of books.

(2) Calculate, how many yuan is needed in total?

24×4×5=480 (yuan)

Answer: A total of 480 yuan is required.

How many bricks did they use?

Naughty: 3×4×3=36 (blocks)

Xiaoxiao: 2×6×3=36 (blocks)

Qisi: 2×9×2=36 (blocks)

Keywords: Free download of Hebei Education Edition third-grade mathematics PPT courseware for the second volume, continuous multiplication PPT download, .PPT format;

For more information about the PPT courseware "Multiplying Two Digits by Two Digits", please click the "Multiplying Two Digits by Two Digits ppt" ppt tag.

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Update Time: 2024-11-25

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

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