"Changes in Decimal Point Position" Decimal Multiplication PPT Courseware

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"Changes in Decimal Point Position" Decimal Multiplication PPT Courseware

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"Changes in Decimal Point Position" Decimal Multiplication PPT Courseware

1. If 3.87 is expanded by 10 times, 100 times, and 1000 times, what is the value?

3.87×10=38.7

3.87×100=387

3.87×1000=3870

When there are not enough digits, use 0 to make up for it!

2. Write the scores for each of the following questions:

53.8÷10=5.38

53.8÷100=0.538

53.8÷1000=0.0538

3. Fill in the following blanks completely:

0.4 meters = ( ) decimeter

0.63 square meters = ( ) square decimeters

1.58 kilogram = ( ) kilogram ( ) gram = ( ) gram

4. Judge the following questions: put a √ in the brackets if it is correct, and an × if it is wrong.

(1) If the decimal point of a decimal number is moved two places to the left, the original number will be reduced by 2 times. ( )

(2) A three-digit decimal number. After removing the decimal point, the original number will be expanded 100 times. ( )

(3) If the decimal point is moved three places to the left, the original number will be expanded 1000 times. ( )

(4) If the decimal point is moved two places to the right, the original number will be reduced by 100 times. ( )

5. Fill in the blanks:

(1) If the decimal point of 3.297 is moved two places to the right, it becomes ( ), and the original number is ( ) times. If the decimal point of 608.5 is moved two places to the left, it becomes ( ), and the original number is ( ) times.

(2) 8.03 is ( ) decimal place, 80.3 is ( ) decimal place, write 8.03 as 80.3, and move the decimal point to ( ) place ( ) place.

(3) If you remove the decimal point from 0.06, the original number will be ( ) times; in 768, if you put the decimal point in the lower right corner of 6, the original number will be ( ) times.

(4) Move the decimal point of 93.18 one place to the left, then "1" is at the ( ) position, and move the decimal point of 93.18 one place to the right, then "1" is at the ( ) position.

6. For the following numbers, if you move the decimal points to the left of the highest digit, what will happen to the size of the decimals?

37.6 5.42 8.296 138.7

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Update Time: 2024-12-02

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

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"Changes in Decimal Point Position" Decimal Multiplication PPT Courseware
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