"Group Exercise Performance" PPT Courseware 3

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"Group Exercise Performance" PPT Courseware 3

How many ways are there to arrange 12 cards into a rectangle?

3×4=12 2×6=12

4×3=12 6×2=12

1×12=12

12×1=12

2 and 6 are factors of 12.

12 is a multiple of 2 and also a multiple of 6.

3 and 4 are factors of 12.

12 is a multiple of 3 and 4.

For convenience, when studying factors and multiples, the numbers we refer to generally refer to integers (excluding 0).

Think about it, do it

According to the following calculation formula, talk about which number is a multiple of which number and which number is the factor of which number.

11 × 4＝44 12 × 5＝60

9 × 8＝72 45 ÷ 3＝15

Give it a try:

2, 3, 5, 6.

Can you find all the factors of 36?

Can you choose two numbers from them and tell them who is the factor of whom? Who is the multiple of whom?

The factors of 36 are: 1,2,3,4,6,9,12,18,36.

Smart Paradise:

1. The largest factor of a number is 17, this number is ( ), its smallest factor is ( ), the number of factors of 17 is ( ), there are ( ) in total.

2. Among the numbers 4, 8, 16, 32, 64, 84, and 100, the factors of 40 are ( ) and the factors of 80 are ( ).

Questioning Paradise:

①12 is a multiple and 3 is a factor. ( )

②The smallest factor of 34 is 17.( )

③2 and 3 are both factors of 6. ( )

Easy games:

Rules: The teacher will give you a number to see if the number on your card meets the conditions. If it does, please stand up and raise your card to see who responds faster?

I am 5, I look for my multiples.

I'm 24 and I'm looking for my factors.

I'm 30, I'm looking for my factor.

I am 1, I find my multiple.

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Update Time: 2024-09-09

This template belongs to Mathematics courseware Qingdao Edition Fifth Grade Mathematics Volume 1 industry PPT template

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