"Characteristics of Multiples of 2 and 5" Factors and Multiples PPT Courseware

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"Characteristics of Multiples of 2 and 5" Factors and Multiples PPT Courseware

1. Review introduction and reveal topics

What are the multiples of 7? What about 6?

How to find multiples of a number?

You can think of which integers divided by this number are integers, then these integers are multiples of this number.

You can also multiply this number by 1, 2, 3, 4, 5..., and the resulting product is a multiple of this number.

2. Explore new knowledge

(1) Characteristics of multiples of 5

(2) Characteristics of multiples of 2

Which of the following numbers are multiples of 2? What numbers are multiples of 5? Which numbers are multiples of 2 and 5?

Multiples of 2 are:

24, 90, 106, 60, 130, 280, 6018, 8100.

Multiples of 5 are: 35, 90, 15, 60, 75, 130, 280, 8100.

3. Application of knowledge

Among integers, numbers that are multiples of 2 are called even numbers (0 is also an even number), and numbers that are not multiples of 2 are called odd (jī) numbers.

1. Which of the following numbers are odd? Which ones are even numbers?

33 98 355 0 123 881

8089 1000 988 565 3678 677

Odd numbers include: 33,355,123,881,8089,565,677.

Even numbers include: 98,0,1000,988,3678

2. Fill in the blanks as required.

(1) The numbers in the two digits are the same and are multiples of 5.

(2) 35□ is both a multiple of 2 and a multiple of 5.

(3) □□□ is the smallest three-digit number that is both a multiple of 2 and a multiple of 5.

The ones digit of multiples of 5 is 0 or 5. The numbers in the two digits are the same. Therefore, it cannot be 0, so both digits are 5, and the number is 55.

A number that is a multiple of 2 and a multiple of 5 has 0 in its digits, so the number is 350.

A number with 0 in the ones place is a multiple of 2 and 5. The three-digit number must be the smallest. The number in the hundreds place is 1 and the tens place is 0. This number is 100.

4. Assign homework

Homework: Exercise 3 on page 11, question 6. Exercise 3 on page 12, questions 7 and 12.

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For more information about the PPT courseware "Characteristics of Factors and Multiples of Multiples of 2 and 5", please click the Characteristics of Factors and Multiples ppt of Multiples of 2 and 5 ppt tag.

"Characteristics of Multiples of 2 and 5" Multiples and Factors PPT courseware:

"Characteristics of Multiples of 2 and 5" Multiples and Factors PPT Courseware Teaching Objectives 1. Experience the process of independently exploring the characteristics of multiples of 5 and 2. 2. Knowing the characteristics of multiples of 2 and 5, you can determine whether a natural number is a multiple of 2 or 5. 3. Actively participate in exploration activities and be willing to...

"Characteristics of Multiples of 2 and 5" Factors and Multiples PPT courseware:

"Characteristics of Multiples of 2.5" Factors and Multiples PPT Courseware Multiply a number by 1, 2, and 3 in sequence. ． ． The resulting product is a multiple of this number. Numbers like 2 4 6 8 are all multiples of 2. Looking at these numbers, what are the characteristics of their single digits? The ones position is 0..

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Update Time: 2024-10-06

This template belongs to Mathematics courseware People's Education Press fifth grade mathematics volume 2 industry PPT template

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