"Multiplication Estimation" PPT courseware for multiplying two digits by two digits

Category	Format	Size
Western Normal University Edition Third Grade Mathematics Volume 2	pptx	6 MB

"Multiplication Estimation" PPT courseware for multiplying two digits by two digits

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Upload Time: 2024-10-06

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Description

"Multiplication Estimation" PPT courseware for multiplying two digits by two digits

teaching objectives

In this lesson, we mainly study the estimation of multiplication. Students must be able to master the estimation method and be able to estimate multiplication accurately.

South China Country Garden School organizes a spring outing for students. Each car can seat 42 people, and there are 18 cars. There are 720 teachers and students in total. Is it enough?

How much does 42×18 cost?

42×18≈720

Communicate softly between groups

These three methods can estimate the number of seats in a bus. Now we need to determine whether there are enough seats for 720 people. Which method is most certain to solve this practical problem? In other words, which method do you think is more likely to ensure that there are enough seats for 720 people?

Small extracurricular survey

I interviewed teacher ( ). He corrects ( ) notebooks every day, 22 days a month. He works for 10 months a year, and corrects about ( ) notebooks a year. This teacher has been working for ( ) years. , he has corrected about ( ) books in total.

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For more information about the PPT courseware "Estimation of Multiplication of Two-Digits by Two-Digits", please click on the Multiplication Estimation of Two-Digits by Two-Digits ppt ppt tag.

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Update Time: 2024-10-06

This template belongs to Mathematics courseware Western Normal University Edition Third Grade Mathematics Volume 2 industry PPT template

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"Multiplication Estimation" PPT courseware for multiplying two digits by two digits