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Category | Format | Size |
---|---|---|
People's Education Press Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Dividing a number by a decimal" Decimal division PPT courseware 3
How should the decimal point be moved to convert the following decimals into whole numbers?
The rule that the quotient does not change: In division, if the dividend and the divisor expand (or shrink) by the same multiple at the same time, the quotient does not change.
1. Turn the following questions into divisions where the divisor is an integer.
91.2÷3.8=( ) ÷38
0.756÷0.18=( ) ÷18
51.3÷0.27=( ) ÷27
26÷0.13=( ) ÷( )
Calculation rules for decimal division when the divisor is a decimal:
At first glance: see clearly how many decimal places ( ) is;
Double shift: Move the decimal points of the divisor and dividend to ( ) by the same number of digits at the same time, so that the divisor becomes ( ). When the number of digits of the dividend is not enough, add ( ) at the end of it;
Three calculations: Calculation according to the division whose divisor is ( ).
Mind surfing
During the math test, Xiao Ming accidentally divided a number by 4.75 and calculated it as a multiplication by 4.75. The result was 406.125. What should be the correct answer to this question?
This courseware provides a comprehensive introduction to dividing a number by a decimal through small games and exercises, which improves students' interest in learning and helps students better understand and remember the knowledge points of decimal division. It is a good classroom teaching courseware.
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For more information about the "Decimal Division Dividing a Number by a Decimal" PPT courseware, please click the Decimal Division ppt Dividing a Number by a Decimal ppt tag.
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Update Time: 2024-10-14
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