"Factors and Multiples" PPT courseware 3

Description

"Factors and Multiples" PPT courseware 3

1. Review introduction and reveal topics

Calculate each of the following questions orally and tell me who is a multiple of whom? Who is whose factor?

34÷2=17, the quotient is an integer with no remainder, so 34 is a multiple of 2 and 17, and 2 and 17 are factors of 34.

18÷6=3, the quotient is an integer with no remainder, so 18 is a multiple of 6 and 3, and 6 and 3 are factors of 18.

2. Explore new knowledge

What are the factors of 18?

Which integers divide 18 into an integer?

18÷6=3, the factors of 18 are 3 and 6.

Whether you think in terms of multiplication or division, you can find all the factors as long as they are in order.

How to find the factors of a number?

The result of dividing this number by any integer starting from 1 is still an integer, and the divisor and quotient are factors of this number.

You can also start from 1 and see which two integers are multiplied by this number. Then these two integers are factors of this number.

3. Application of knowledge

Write the factors of each of the following numbers.

10 17 28 32 48

4. Assign homework

Homework: Exercise 2 on page 8, question 6.

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Update Time: 2024-08-30

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

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