| Category | Format | Size |
|---|---|---|
| Western Normal University Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
"Multiplying decimals by integers" Multiplication of decimals PPT courseware 6
Description
"Multiplying decimals by integers" Multiplication of decimals PPT courseware 6
Oral arithmetic: Look carefully at each set of questions. What did you find?
3X2= 5X4=
30X2= 5X40=
300X2= 5X400=
3000X2= 5X4000=
One factor remains unchanged, and the other factor is expanded 10 times, 100 times, 1000 times...
Then the product will expand 10 times, 100 times, 1000 times...
General method for multiplying decimals by whole numbers:
① First convert decimals into integers;
② Calculate the product by multiplying integers;
③ Determine the decimal point position of the product.
I can do it
Use the three numbers 2, 3, 4 and the decimal point to form any formula for multiplying a decimal by an integer and calculate it.
2.3×4=9.2 2.4×3=7.2 3.4×2=6.8
3.2 ×4=12.8 3.2 ×4=12.8 4.3 ×2=8.6
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For more information about the PPT courseware "Multiplying Decimals and Multiplying Decimals by Integers", please click the Multiplying Decimals ppt Decimals Multiplying Integers ppt tag.
"Multiplying Decimals by Integers" Decimal Multiplication Flash Animation Courseware 2:
"Multiplying Decimals by Integers" Flash Animation Courseware for Multiplying Decimals 2 This courseware is a teaching material for multiplication of decimals in the second unit of the fifth grade mathematics volume of the Hebei Education Edition. The content is vivid and vivid. Please download it! Keywords: decimal multiplication teaching courseware,...
"Multiplying Decimals by Integers" Decimal Multiplication PPT Courseware 7:
"Multiplying decimals by integers" PPT courseware for multiplying decimals by integers 7 Teaching objectives 1. Combined with specific examples, experience the process of solving problems with your own methods and learn the calculation method of multiplying decimals by integers. 2. Understand and master the calculation method of multiplying decimals by integers, and be able to multiply decimals correctly..
"Multiplying Decimals by Integers" Decimal Multiplication PPT Courseware 5:
"Multiplying Decimals by Integers" Decimal Multiplication PPT Courseware 5 Can you use the knowledge we have learned before to calculate how much 0.83 is? 0.83 is the sum of three 0.8s added together. 0.8 yuan is 8 jiao, 83=24 jiao, 24 jiao=2 yuan, 4 jiao=2.4 yuan, so 0.83=2.4 (yuan) in small...
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Update Time: 2024-07-03
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