"The Law of Change of Product" Multiplication of two-digit numbers by two-digit numbers PPT courseware

Description

"The Law of Change of Product" Multiplication of two-digit numbers by two-digit numbers PPT courseware

teaching objectives

In this lesson, we will study the changing rules of product. Students should actively use their brains to explore the changing rules of product and see who can summarize the most accurate rules.

Observe this set of calculations and tell me what you found?

The first factor remains unchanged, the second factor keeps getting bigger, and the product keeps getting bigger.

The first factor remains unchanged, the second factor is expanded 10 times, and the product is also expanded 10 times.

When two factors are multiplied together, if one factor remains unchanged and the other factor expands (or shrinks) several times, the product also expands (or shrinks) by the same multiple.

If the width of this rectangular piece of grass is increased to 6 meters and the length remains unchanged, what is the area of ​​the expanded grass?

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For more information about the PPT courseware "The Changes in the Product of Multiplication of Two Digits by Two Digits", please click on the Change Rules of the Product of Multiplication of Two Digits by Two Digits ppt tag.

"The Law of Change of Product" Multiplying three-digit numbers with two-digit numbers PPT courseware 3:

"The Law of Change of Product" Three-digit Multiplication of Two-digit PPT Courseware 3 Who can summarize the two discovered laws into one in one sentence? When two numbers are multiplied together, when one factor remains unchanged and the other factor is multiplied by something, the product must also be multiplied by something. When two numbers are multiplied together, when one factor remains unchanged, the other...

"The Law of Change of Product" Three-digit times two-digit PPT courseware 2:

"The law of change of product" Multiply three-digit two-digit PPT courseware 2 Oral calculation 62=12 64=24 620=120 6200=1200 Observation: Please choose two calculations to compare and see how their factors change? How does the product change? ... ... ... The rule of change of product...

"The law of change of product" three-digit times two-digit PPT courseware:

"Change Rules of Product" Multiplying Three-digit Numbers by Two-digit PPT Courseware When multiplying two numbers, one factor remains unchanged, the other factor is multiplied by a certain number (except 0), and the product is also multiplied by a certain number. When two numbers are multiplied, one factor remains unchanged, the other factor is divided by a number (except 0), and the product is also divided by a number. Two numbers match each other...

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Update Time: 2024-11-01

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

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