| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
"Multiplying Decimals by Decimals" Multiplication and Division of Decimals PPT Courseware 4
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"Multiplying Decimals by Decimals" Multiplication and Division of Decimals PPT Courseware 4
To see how many decimals there are in the factors, start from the right side of the product and count how many decimal points there are.
6.7×0.3=2.01
If the multiplied product does not have enough decimal places, add 0 in front and then add the decimal point.
0.56×0.04=0.0224
To calculate decimal multiplication, first calculate the product according to the rules of integer multiplication, then look at how many decimals there are in the factors, count the number from the right side of the product, and click on the decimal point.
Determine whether there are errors in the number of decimal places for each product below.
56.7×38=2154.6
0.37×0.94=3.478
56.7×38=2154.6
0.37×0.94=3.478
Bought 12 school bags and 15 pencil cases.
(1) How much does it cost to buy a schoolbag?
(2) How much does it cost to buy a pencil case?
(3) How much did it cost in total?
Mongolian cattle generally weigh 0.326 tons and are 1.12 meters tall. The weight of the newly bred grassland red cattle is about 1.3 times that of Mongolian cattle, and the height is about 1.1 times that of Mongolian cattle. What is the weight and height of a prairie red bull?
It was going to rain. Xiaoli saw lightning in the distance and heard thunder 4 seconds later. How far away was the lightning from Xiaoli? (The propagation speed of thunder in the air is 0.33 kilometers/hour.)
Thought questions:
The product of two factors is 75.2. One factor is expanded by 6 times and the other factor is reduced by 2 times. What is the product?
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For more information about the "Multiplying Decimals by Decimals, Multiplication and Division of Decimals" PPT courseware, please click the "Multiplying Decimals by Decimals PPT, Multiplication and Division of Decimals PPT" tab.
"Multiplying Decimals by Decimals" Multiplication of Decimals PPT (Lesson 3):
"Multiplying decimals by decimals" Multiplication of decimals PPT (Lesson 3) Part 1: Introduction of new knowledge Think about how to calculate multiplication of decimals by decimals? Calculate the product according to the multiplication of integers. See how many decimals there are in the factors. Count them from the right side of the product and put the decimal point; the product...
"Multiplying Decimals by Decimals" Multiplication of Decimals PPT (Lesson 2):
"Multiplying decimals by decimals" Multiplication of decimals PPT (Lesson 2) Part 1: Introduction of new knowledge Think about how to calculate multiplication of decimals by decimals? 1. First calculate the product according to the multiplication of integers, and then click the decimal point; 2. When clicking the decimal point, look at how many decimals there are in the two factors,...
"Multiplying Decimals by Decimals" Multiplication of Decimals PPT (Lesson 1):
"Multiplying decimals by decimals" Multiplication of decimals PPT (Lesson 1) Part 1: Introduction of new knowledge Think about how to calculate decimals multiplied by integers? When multiplying a decimal by an integer, you can convert it into integer multiplication to calculate how many decimals there are in the factors and how many decimals there should be in the product. product..
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Update Time: 2024-07-05
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