"The rule of moving the decimal point position to the left" Decimal multiplication PPT courseware

Description

"The rule of moving the decimal point position to the left" Decimal multiplication PPT courseware

Learn important and difficult points

Key points: Master the rules for moving the decimal point position to the left and apply regular calculations.

Difficulty: Master the method of moving the decimal point position to the left and filling it with 0s when there are not enough decimal places.

Method summary

The rule of moving the decimal point position to the left

Shrink a number to 1/10 of its original size

Move the decimal point one place to the left

Shrink a number to 1/100 of its original size

Move the decimal point two places to the left

Shrink a number to 1/1000 of its original size

Move the decimal point three places to the left

In conclusion

53.8÷10＝5.38 53.8÷100＝0.538 53.8÷1000＝0.0538

Divide a number by 10, 100, 1000... If there are not enough decimal places, use 0 to make up for it.

Rewrite unit

6 tons 40 kilograms = 6.04 tons 8 tons 32 kilograms = 8.032 tons

Rewrite the low-level unit into the number of the high-level unit. If the progress rate between the two units is 10, 100, 1000... then you can use the rule of moving the decimal point to the left to rewrite.

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For more information about the PPT courseware "The Law of the Decimal Point Position Moving to the Left in Decimal Multiplication ppt", please click on the ppt tag of "The Law of the Decimal Point Position Moving to the Left in Decimal Multiplication ppt".

"The rules and applications of moving the decimal point position to the left" Decimal multiplication PPT courseware:

"The Rules and Applications of the Decimal Point Position Moving to the Left" Decimal Multiplication PPT Courseware Teaching Objectives 1. Combined with specific examples, experience the process of independently exploring the rules and application rules of the decimal point position moving to the left for calculation. 2. Understand and master the rules for moving the decimal point to the left..

File Info

Update Time: 2024-10-20

This template belongs to Mathematics courseware Hebei Education Edition Fifth Grade Mathematics Volume 1 industry PPT template

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