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# 乘法的初步认识练习 - PowerPoint PPT Presentation

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## PowerPoint Slideshow about ' 乘法的初步认识练习' - alea-durham

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（ ）个（ ）

4

2 + 2 + 2 + 2 = 8

4 x 2 = 8

2 x 4 = 8

4+4+4+4+4=20

4×5=20

5×4=20

2

6

3

2

6

2

3

6

4

3

12

3

12

4

3

12

4

3×5=15

10

（1）2×5=( ) 。

（2）一个因数是5，另一个因数是4，积是( )。

20

（1）15＋15

（2）5＋5＋5＋5

（3）9

（4）5个3相加

（5）2和6相乘

（6）3＋3＋3＋2

（7）4＋4＋4－4