| Category | Format | Size |
|---|---|---|
| Beijing Normal University Edition Fifth Grade Mathematics Volume 1 | pptx | 6 MB |
"Finding Factors" Multiples and Factors PPT Download
Description
"Finding Factors" Multiples and Factors PPT Download
Part One Content: Knowledge Explanation
What are the ways to spell a rectangle using 12 small squares?
There are 3 ways to spell it.
Can you find all the factors of 12? Think about it and give it a try.
12 is the product of which two numbers?
12=1×12 12=2×6 12=3×4
What numbers can 12 be divisible by?
12÷1=12 12÷2=6 12÷3=4 12÷4=3 12÷6=2 12÷12=1
1, 2, 3, 4, 6, and 12 are all factors of 12.
Find all the factors of 18 and communicate with your peers.
18 is the product of which two numbers?
18=1×18 18=2×9 18=3×6
What numbers can 18 be divisible by?
18÷1=18 18÷2=9 18÷3=6 18÷6=3 18÷9=2 18÷18=1
All the factors of 18 are 1, 2, 3, 6, 9, and 18.
The key is to see which two numbers multiply equal to 18.
As long as 18÷6=3 is counted, there is no need to count if it occurs repeatedly.
Finding factors PPT, part 2: practice and consolidation
1. Draw a rectangle on graph paper so that its area is 16 cm² and its side length is a whole centimeter. (The side length of each small square represents 1cm)
⑴What kinds of painting methods are there? Talk to your companions.
⑵Write all the factors of 16 on the horizontal line below. All factors of 16: 1, 2, 4, 8, 16
2. Write down all the factors of 24 and tell how you found them.
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
Use multiplication: 24=1×24; 24=2×12; 24=3×8; 24=4×6.
3. Fill it out and share your thoughts with your peers.
1, 3, 5, 15
factors of 15
1, 3, 7, 21
factors of 21
Which numbers are factors of both 15 and 21?
Finding factors PPT, the third part: knowledge summary
Find all the factors of a number and see which two numbers multiplied equal to this number. These two numbers are the factors of this number.
When writing out all the factors of a number, write them in order from small to large, without duplication or omission.
Keywords: Beijing Normal University edition fifth grade mathematics PPT courseware free download, find factors PPT download, multiples and factors PPT download, .PPT format;
For more information about "Finding Factors in Multiples and Factors" PPT courseware, please click on the "Finding Factors in Multiples and Factors PPT" PPT tab.
"Finding Factors" Multiples and Factors PPT teaching courseware:
"Finding Factors" Multiples and Factors PPT Teaching Courseware Part One: Review of Old Knowledge 1. Think about it. 1. Among the five numbers 1518203045, ( ) is a multiple of 3; the number with a factor of 5 is ( ); the number that is both a multiple of 3 and a multiple of 5 is ( ). 2...
"Finding Factors" Multiples and Factors PPT:
"Finding Factors" Multiples and Factors PPT Part One Content: Class Introduction 1. In the activity of using small squares to form rectangles, experience the method of finding the factors of a number and improve your ability to think about problems in an orderly manner. 2. In the natural number 1100, you can use a variety of methods to correctly...
"Finding Factors" Multiples and Factors PPT courseware:
"Finding Factors" Multiples and Factors PPT Courseware Can you find all the factors of 12? 12＝112 12＝26 12＝34 The factors of 12 are 1122634. 121＝12 122＝6 123＝4 124＝3 126＝2 1212＝1 The factors of 12 are 1122634. 12346 and 12 are...
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Update Time: 2024-07-06
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